WASHINGTON, D.C. (WUSA) -- Most college students walk away with a handshake and a diploma on graduation day. But Sunday, an American University student walked away with a diamond ring.
22-year-olds Sam Miller and Sarah Cooper met on campus four-years-ago as freshmen. Miller says he knew she was "the one" just three-months into the relationship.
"There is a sense I completeness that comes with finding the person that you want to spend the rest of your life with," said Miller. "When I looked at her, you see a wife, you see a mother, you see a best friend, and you really see someone at all stages of their life. I would have married her right then."
Instead, Miller had to put off the proposal for four years.
"My mom insisted no engagement until after graduation," said Cooper.
Miller obeyed Mom's orders, but not a second longer than he had to. As Cooper walked off the stage after picking up her diploma, Miller dropped to one knee and proposed.
"Everything takes over and the words came flowing out of my mouth. I had no idea what I was saying," said Miller.
"It was something about, 'I have a question for you and I've waited long enough' I, of course, said yes," said Cooper. "I don't really know what I was thinking. It was just phenomenal."
Miller and Cooper haven't set a wedding date, but they are planning on staying in the Washington area. Miller just accepted a job at a public relations firm. Cooper says she wants to get a job as a teacher before she starts planning the wedding. The YouTube video of their proposal has been viewed almost 10,000 times in less than 24-hours.