Keep in Touch by Rebecca Chase

Lucie is an anxious seventeen-year-old struggling with anxiety attacks, painfully low self-esteem and loneliness while trying to live up to the expectations of her controlling dad, who has mapped out her entire future. But it’s not the future she wants.

One weekend, she meets Chris “with the beautiful green eyes and dimples when he smiles”. He’s a charming high school graduate with a bad reputation who couldn’t possibly be interested in someone like her.
Chris makes Lucie feel alive like she never has before, and the two become inseparable. Lucie starts to fall for Chris and wonders if he feels the same way about her. But they’re torn apart before confessing their feelings for one another.
Eight years later, they bump into each other by total coincidence. As the story flips between past and present, Lucie and Chris relive the memories of their weekend and hash out what exactly went wrong between them. They both feel the romantic connection from that weekend years ago. Will they have a chance at a future together? Or are their feelings better left in the past?