Bonnie Lemesh and Dave Katleman, both 59, have already sent invitations to their June 13 virtual Hawaii wedding, complete with a video screen backdrop of palm trees, golden sand and lots of blue ocean.

With about 50 family members and close friends, – from Brooklyn to California, watching on Zoom, Denise Daley, a retired San Francisco marriage commissioner and friend of the bride and groom, is to lead the ceremony, which is to be held in the couple’s living room in San Mateo, Calif.

Ms. Lemesh, a dietitian in San Mateo, and Mr. Katleman, a software engineer with Oracle in Santa Clara, Calif., whom Ms. Lemesh called “the smartest man I have ever met in my life,” will host a brunch immediately following their nuptials that will include white fish, salad, bagels, lox and cream cheese, and be shared not just by the bride and groom, but by all 50 of their guests.

“We will all enjoy the same meal, at the same time,” Ms. Lemesh said. “Did you know that bagels and lox are staples at most Hawaiian weddings?”

Ms. Lemesh and Mr. Katleman, who will both be marrying for a second time (their first marriages ended in divorce), have been in communication with a New York deli, Zuckers, about preparing their wedding-day brunch, as well as a specialty-food delivery company, Goldbelly. Each attendee will receive their brunch the day before the wedding and will eat after the ceremony. In addition, guests will receive leis, tiki cups and mai tai mix.

“It was Bonnie’s idea, and I think it’s great,” said Mr. Katleman, who met Ms. Lemesh on the dating website, J-Date, in 2011.

“Besides, she has been needling me to marry her ever since we began dating nearly 10 years ago,” he said, laughing. “So this is a really cool, really nice way to get it done.”

Ms. Lemesh said that her two children and two grandchildren, as well as Mr. Katleman’s three children, will all be at their Zoom wedding, which will start at 10 a.m., Pacific time.

“We have been receiving great feedback from all of our guests,” she said. “Everyone is excited to be getting together, and eating together, they’re just loving this.”

The couple had originally intended on getting married at a real wedding venue in August, but switched gears because of numerous restrictions related to Covid-19. The California Governor’s Office has authorized virtual weddings through June 2020.

“I started thinking that if we went ahead and had a real-deal wedding, it might have never come off, and even if it had, not everyone might have been able to make it,” said Ms. Lemesh, who will wear what her husband described as a ‘Moo Moo wedding dress’ on her big day.

“But a virtual wedding, plus a real brunch from New York,” she said. “Now tell me, who’s going to want to miss out on that?”

Dr. Jennifer Ross had only been on one date before meeting Tyler LeFevre in April 2014 while she was in veterinary school at Colorado State University. She had always been career-focused and had little time for romance.

But she did have time for anime, which is what she was watching when she met Mr. LeFevre on the chat site Chatango. Using aliases, the two began communicating online. After a while they moved to a private chat room.

“Out of everybody I was talking to, she was easily the kindest person,” said Mr. LeFevre, now 29 and a chef in Portland, Ore.

Trust and kindness were big issues for Mr. LeFevre, who said he grew up in a “really violent setting” in Portland and spent almost four years in a youth correction facility. He struggled with drugs and alcohol but got clean in 2006. Still, he wasn’t interested in a relationship.

“I was like, ‘I’m a criminal’ and tried to get her to leave me alone,” he said. “She made it hard not to end up talking to her more. I didn’t feel like I had to hide who I was.”

Dr. Ross, now 29 and currently doing volunteer veterinary work in Portland, also enjoyed their rapport. “He was honest with me from Day 1,” she said. “He told me the day we met the whole truth about himself, so there was nothing hidden.”

They discovered that they both loved anime and science fiction. She said she was especially happy when she asked him what color the sky was and he gave a “scientific answer about auto refraction of light and the absence of color instead of it being blue.”

They chatted online for about a month, then moved to Skype. In late December 2014 she flew to Portland so they could meet in person. He picked her up at the airport and they dropped her bags off at her hotel. Then he squired her to his favorite spots around town.

She was so nervous that she couldn’t speak for the first 12 hours. “He thought it was hilarious,” she said. “I was just in such shock mode. He just kept teasing me until I started talking to him back.”

Over the next few days, they visited the Saturday market, Portland City Grill Restaurant, Powell’s Bookstore, and the top of KOIN Tower, with 360-degree views of the city. This was where he asked her to be his girlfriend and they shared their first kiss.

She met his parents, Troy and Melinda LeFevre, and he met her older brother, Brad Ross, who “happened” to be visiting friends in Portland that same weekend. (He was really there to check out this stranger his sister was visiting.) “My brother quizzed him and then loved him,” Dr. Ross said.

The couple continued long distance for the next few years, until she finished school and moved to Oregon after graduation in 2015.

“Going through vet school is emotionally and physically draining,” she said. “He was so supportive and wonderful.”

He proposed on June 3, 2019, in the Fantasy section of Powell’s Bookstore, and they chose May 10, 2020 as their wedding date because she liked the symmetry. “Five times two is 10, and 10 times two is 20,” she said.

They married that day at Portland’s White House, a bed-and-breakfast that had a special wedding package, including a four-day stay. Because of the coronavirus, they were the only guests and had full run of the place.

Mr. LeFevre’s aunt, Trish Cowman, who became a Universal Life minister, officiated, with six other friends in attendance. About 200 others watched via Zoom, including her parents Jere and Ann Ross of San Francisco.

“I don’t think I could have found a better person for me,” Mr. LeFevre said. “She’s the reason why I’m successful at this point. She pushed me to learn to drive. She pushed me to start a profession rather than a job. If I hadn’t met Jen, I probably wouldn’t be where I am today because I’d still be hiding who I used to be.”

Julian Schwarz professed his love to Marika Bournaki in 2007 when they were 16 and students at the Aspen Music Festival and School in Colorado.

“I declared my love after curfew and went into her dorm room the night before she left the festival,’’ said Mr. Schwarz, 29, a classical cello soloist and the assistant professor of cello at Shenandoah University in Winchester, Va.

“I know you don’t like me now, but you will like me someday,” he said he told her. “And we will get married. We will have children together and perform together.”

She laughed it off, and described him as “cute and goofy.”

“He would invent stories and sing to me in French,’’ said Ms. Bournaki, also 29, and a French Canadian classical piano soloist. Over the past two years, she has performed the complete cycle of Beethoven’s 32 piano sonatas at Bargemusic in Brooklyn.

They each graduated from Juilliard, from which they also received a master’s degree in performance — she in piano, he in cello. He was two years behind her.

Mr. Schwarz randomly called her over the years, and in 2009 they met, and hung out at the Verbier Festival in Switzerland. (His father is Gerard Schwarz, the conductor and music director).

“I have a picture of me and Julian in Switzerland,” she said. It was on my fridge through college.’’

When Mr. Schwarz transferred to Juilliard from Colburn Conservatory of Music in 2011 they became good friends.

“We were in the friend zone,” Ms. Bournaki said, and three years later, on May 5, when neither was seeing anyone, they had their first date. She recalled thinking, “This could work.”

He took her to baseball games, to his favorite restaurants, and after she noticed cello pieces on his piano they began playing together for fun. They had a long-distance relationship for six months after she returned home to Montreal in mid-June 2014.

“We were compatible musically,” Mr. Schwarz said. In spring 2015, they began working on Poulenc’s “Sonata for Cello and Piano,” which became their signature piece when they toured as a duo.

They performed the piece at a recital at the Austrian Embassy in Washington in April 2015 and at Schloss Rosenegg in Salzburg, Austria, that summer. In 2016, they won first prize in playing it at the Boulder International Chamber Music Competition.

In 2018, Mr. Schwarz got down on one knee and proposed at the National Arts Club in New York, but with their busy concert schedules they never got around to setting a wedding date.

“Our performance schedules were so encompassing we didn’t have time,’’ he said, but after the pandemic outbreak their concerts were canceled and they stayed at their apartment in Winchester, Va. “We had this abundance of time.”

In March, after Ms. Bournaki’s father came down with Covid-19 in Montreal, and was on a respirator (he is now recovered), Mr. Schwarz realized only immediate family could travel to Canada during the travel ban. “I casually looked for ways to get married,” he said, “and called 10 counties for a marriage license and found one.”

On May 5, the sixth anniversary of their first date, they were married at their apartment in Winchester, Va., by Rabbi Scott Sperling.

“Nobody knew we were getting married,” she said. “It was all improvised.”

In two days they put together a homemade wedding, including building a huppah, making a floral crown for her from flowers around the apartment, express delivery of caviar, Champagne from Costco and setting up a video camera on a tripod.

“My teenage prophecy did come true,” he said, “and it was so well worth the wait.”

The surprise May 25 wedding De-Shazo Wilkinson put together for his fiancée, Jacarra Wilson, was brought on by an emotional gut punch.

After postponing their wedding for a second time in late March because of the coronavirus — the first, last fall, was caused by the shutdown of the venue they had chosen in Orlando, Fla. — Ms. Wilson had said the unthinkable. “She was like, ‘This is strike two. What if it just wasn’t meant to be?’” said Mr. Wilkinson, 32, an assistant principal at KIPP Impact Middle School in Jacksonville, Fla. “My heart sank. I knew I had to figure out something.”

Ms. Wilson, 29, and Mr. Wilkinson met as students at the University of Central Florida in Orlando in 2007. Both were trying out for Rukus, a hip-hop dance team, and both made it. They began dating. By January 2010, a few months before Mr. Wilkinson graduated, they had gotten serious. But then Mr. Wilkinson landed a teaching job in Lake City, Fla., while Ms. Wilson had three years to go before finishing her degree.

In 2014, when he moved to Jacksonville for another teaching job, Ms. Wilson was busy establishing herself as a hair and makeup artist in the Orlando area. Long-distance dating was by then familiar. But three years later, enough was enough. “It’s about 162 miles between Orlando and Jacksonville,” Ms. Wilson said. “Finally I said to myself, What are we doing? I can do hair and makeup anywhere.” She and Mr. Wilkinson moved into a new apartment together in Jacksonville in 2018. On Jan. 30, 2019, he proposed.

“It was the nine-year anniversary of when I asked her to be my girlfriend,” Mr. Wilkinson said. He had arranged nine dozen roses around their home and gotten down on one knee. Ms. Wilson, who had been complaining minutes earlier that she thought a proposal might never come, was shocked. “I was like, Are you kidding me?” she said. Her yes was followed by a flurry of wedding planning.

After their first two wedding plans fell through, Ms. Wilson was devastated and began expressing concerns about their marriage being not meant to be.

That’s when Mr. Wilkinson sprung into action. With the help of their wedding planner, Michelle Harbridge of the Wedding Authority, he confirmed that the Treasury on the Plaza in St. Augustine, Fla., their second venue, would still welcome them on May 25, though without their guests. He asked their parents and a few other family members to go to St. Augustine with them that Memorial Day, to commemorate what would have been their wedding day.

“We had on our cheesy fiancé T-shirts — his said, ‘I stole her heart,’ and mine said, ‘So I stole his last name,’” Ms. Wilson said. But she had also packed a white outfit she bought to cheer herself up, because Mr. Wilkinson told her to plan on a family photo shoot while there.

When they arrived at the Treasury, Mr. Wilkinson was ready. “In front of our parents and everybody I said, ‘Will you marry me right now?’” He was again on one knee.

“I was sobbing like an idiot,” Ms. Wilson said. An hour later, after 100 cardboard cutout faces of guests who couldn’t be with them were arranged on chairs around the venue, and after Ms. Wilson’s makeup was partially done — “I only had eye shadow on one eye,” she said — they were married over Zoom by Dwayne Jones, a military chaplain stationed in Korea who had been Mr. Wilkinson’s childhood pastor and who is ordained in Florida.

By then, Ms. Wilson had come around to the idea that their marriage was meant to be.

“I came out of it having so much respect for him, because he heard my concerns and he met them with something more than I could have ever imagined,” she said. “I was infinitely satisfied.”