Elizabeth Giles first spotted George Luo on Jan. 19, 2010, during a crowded assembly at their high school, Cate School, in Carpinteria, Calif.

After seeing Mr. Luo, then 16, in the gymnasium bleachers, Ms. Giles, then 15, recalled asking herself, “Who is that?”

“He just about took my breath away,” added Ms. Giles, who described Mr. Luo as “so incredibly handsome.” When the assembly ended, Ms. Giles, who goes by Eliza, said she made a beeline for the exit door and held it open for other students until she could see Mr. Luo up close.

Two weeks later, Mr. Luo initiated their first conversation while they were on a school ski trip to Mammoth Mountain in Mammoth Lakes, Calif. It centered around baseball: Ms. Giles is a granddaughter of William Giles, a former owner of the Philadelphia Phillies who is now the honorary president of Major League Baseball’s National League.

“Everyone in that school knew that Eliza’s grandfather was deeply connected to the Phillies,” Mr. Luo said. “It just seemed like the thing to talk about at that time.”

The two quickly hit it off, and the following month, they went out together for the first time.

“We were just walking around by our school the entire time,” said Ms. Giles, who grew up in Carpinteria. “We talked a lot about baseball again. George told me he played Little League Baseball,” including in the 2005 and 2006 Little League World Series on the Transatlantic Region team.

“He also told me that he would like to be my boyfriend,” she added.

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Mr. Luo, who had attended Cate School as a boarding student from an Aramco compound in Dhahran, Saudi Arabia, was two grades ahead of Ms. Giles. They knew that staying a couple would become more challenging when he went off to N.Y.U. after graduating from high school.

“When he first went to New York and I was still in high school in California, we agreed to take the pressure off each other by seeing other people,” Ms. Giles said.

“But through the years, we both stayed faithful to each other,” she added.

Following her high-school graduation, Ms. Giles shortened the distance between them when she started attending the University of Pennsylvania. “We spent a lot of time and money on Megabuses,” Ms. Giles said. In 2017, after graduating from college, she eliminated it entirely by moving into Mr. Luo’s apartment in Lower Manhattan, where they still live.

Ms. Giles, now 27, holds a bachelor’s degree in nursing from the University of Pennsylvania and is pursuing a master’s degree in adult-gerontology primary care nursing at N.Y.U. A registered nurse, she works in home hospice at Cavalry Hospital in the Bronx and in oncology and palliative care at Memorial Sloan Kettering Cancer Center in Manhattan.

Mr. Luo, 28, holds a bachelor’s degree in business from N.Y.U. and works in production at Jono Pandolfi Designs, a pottery maker in Union City, N.J.

They became engaged in June 2020, after Mr. Luo proposed at a cabin in the Poconos owned by Ms. Giles’s parents. During his proposal, Mr. Luo said to Ms. Giles, “You are the one.” Unbeknown to him, Ms. Giles, who wanted their engagement “to be more of a mutual exchange,” as she put it, had those same exact words engraved on a watch that she gave to Mr. Luo after he gave her a ring.

On March 19, the couple were married at the home of Ms. Giles’s parents in Carpinteria. Alexx Temeña, who was ordained a Universal Life minister for the occasion, officiated before 76 guests, all of whom were vaccinated.

“Our commitment to love ourselves and each other has been our greatest accomplishment,” the bride said two days after the wedding. “It has not always been easy, but it has always been a labor of love and right for both of us to be partners in life.”