During a vacation in Isla Holbox, Mexico, in July 2021, Rachel Stephanie Serrano suspected that Nicolas Alan Platt wanted to propose. Mr. Platt, her boyfriend of five years was acting nervous and when they went to watch the sunset on the beach, he brought a GoPro camera and a drone.

But then, she said, “he kept recording and nothing happened.” Ms. Serrano, a social media influencer who goes by Rachel Love, gave up on the idea of a proposal and ordered a bottle of rosé. They sat on the beach, talking.

It turned out that Mr. Platt was simply procrastinating out of nerves. “I was an hour and a half behind schedule,” he said. “By then, it was pitch black outside.” When Ms. Love suggested that they go back inside the hotel, he finally popped the question.

The recording devices were forgotten. “It was completely off the cuff,” Mr. Platt said.

Ms. Love and Mr. Platt, both 30, had met in December 2015, in an elevator on the way to a mutual friend’s apartment in Miami, where they live. Ms. Love said she was captivated by Mr. Platt from the first moment she saw him. On the elevator, the way he looked “was everything I had dreamed of,” she said. “When I saw him I was like, ‘oh my God, this guy exists.’”

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The two talked all evening and fell asleep on their friend’s couch, then went out for breakfast the next morning. The next week, Mr. Platt invited Ms. Love for dinner at the now-closed Il Mulino in South Beach.

On the date, Ms. Love got the impression that Mr. Platt knew a lot about wine, so she pretended she did, too. “I remember trying to sound like an expert in food and wine pairings,” she said. Only later, she realized Mr. Platt was about as clueless as she was. “In no way whatsoever was I an expert or well-versed at all,” Mr. Platt said.

They moved in together in Miami in August 2016. That was when it became clear to Mr. Platt that Ms. Love was the one. “We’re very similar in many ways,” he said.

For Ms. Love, the moment came half a year later, in early 2017. She was 25 and had been working as a model for a decade. But something had changed. “People were saying I was getting fat or too round and that I needed to lose weight,” she said. “I was so hurt and confused. I was living with him, so I couldn’t hide it. I let it all out. He stopped everything he was doing until he was sure I felt OK.”

Though Ms. Love was ready to leave the modeling industry then, it took her another three years to do so, and Mr. Platt’s support proved crucial. “My whole life has been about how I look, and he sees past that,” Ms. Love said.

Ms. Love was born in Tarrytown, N.Y., and moved to Miami when she was 3. She has a bachelor’s degree in psychology from Florida International University in Miami.

Mr. Platt was born and raised in Miami. After receiving a bachelor’s degree in economics and a master’s degree in accounting from the University of North Carolina at Chapel Hill, he moved back to Miami in 2015. This past March, he joined Ms. Love’s influencer business, Rachelove, as a managing partner.

As avid travelers who have spent time in South Africa, Spain, Mexico, Italy, Austria and the Bahamas, Ms. Love and Mr. Platt knew they wanted a destination wedding. They settled on Antigua, Guatemala, where they had a ceremony Dec. 3 at Jardin Real de Santiago in front of 200 guests. The father of Mr. Platt’s childhood friend, Arturo Chavarry, officiated as a public notary.

Ms. Love knew that her maternal grandparents would not be able to fly to the wedding in Guatemala for health reasons, so a week before the big celebration, she and Mr. Platt were legally married in a small religious ceremony by the Rev. Guillermo Garcia-Tuñon, a Jesuit priest, at the Church of the Little Flower in Coral Gables, Fla. Mr. Platt’s maternal grandfather, Jose De La Hoz, 86, was his best man, and Ms. Love’s paternal grandmother, Eduviges Serrano, 86, was her maid of honor.

Afterward, there was a dinner party for 45 people at Mr. Platt’s parents’ house nearby. “That wedding was really just for the grandparents,” Ms. Love said. “I wanted to make it special for them.”