At her senior prom Friday night, Yiyin Nan and her boyfriend, Tai Jin, were voted the couple “Most Likely to Get Married.”

It’s now the second time they've won the award.

Nan, 18, and Jin, 21, have been dating for more than three years. Beneath the lavender lights and soft glow of candles during prom at Dyker Beach Golf Course in Brooklyn, their young love was cheered on by the faculty and students of The Knox School, a private school in St. James that features an extensive international contingent among its student body.

Both Nan and Jin hail from the eastern end of China; she from Wenzhou and he from Hangzhou. Their hometowns are a four-hour drive apart. After immigrating to the United States in their teens, the two found solace in their similar backgrounds and became friends. At a basketball game in her freshman year, friendship bloomed into romance.

“We keep talking about having their Knox wedding on our campus,” said Virginia Riccardi, chair of the English department. “We’ll get there.”

Jin is studying finance at Carnegie Mellon University in Pittsburgh, Pennsylvania. Nan is working to get into a visual arts program in New York City this year.

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“I only see him once a month now,” she said. “It’s hard, but we try to make it work.”

For Nan and Jin, building a relationship based on encouragement and mutual support makes them confident their relationship will stand the test of time.

“She’s the nicest person I’ve ever met,” Jin said, adding that they plan to introduce their families.

“He’s kind to me,” Nan said. “That’s all that matters.”