Why you can never forget your first love, according to science

While there is a lot of money and research that goes into the study of relationships, a certain amount of mystery remains about why people tend to cling to the memory of their first love. Speaking to a number of psychologists who study relationships and romance, The Washington Post floated several theories as to why we still can't get over that certain someone, no matter how many years go by. Below, a selection of some experts' most illuminating quotes. Jeva Lange

It was sort of scary, and that makes it memorable.

"Your first experience of something is going to be well remembered, more than later experiences. Presumably there'd be more arousal and excitement, especially if it's somewhat scary. And falling in love is somewhat scary — you're afraid you'll be rejected, you're afraid you won't live up to their expectations, afraid they won't live up to yours. Anxiety is a big part of falling in love, especially the first time." -Art Aron, State University of New York at Stony Brook psychology professor

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It was when we learned what love is.

"I [...] think it becomes, to some degree, a template. It becomes what we measure everything else against.”

-Jefferson Singer, Connecticut College psychologist

"Together you decide what love is."

-Nancy Kalish, California State University at Sacramento psychology professor

We experience a 'memory bump.'

"[People between 15 and 26] recall more memories, and they tend to be more positive memories... [And] we have more opportunity to rehearse it and replay it, rethink it, reimagine it, re-experience it." -Singer

We like who were were then.

"I think it's not just about the other person. It's about who we were at that time. We're relishing the image of ourselves. They give us license to be the person we were once again — young and vibrant and beautiful." -Singer