Dane by Kate Oliver

Summer
Returning to her home town was supposed to be temporary. But things change when she realizes her mom needs her help. And when her old high school crush who lives next door finds her on the front porch crying, everything changes. It all feels like a dream come true. At least until reality sets in. She wonders how long it will take before all the fun and excitement wears off because good things never last.

Dane
Twenty years ago he lied to her about his feelings. He’s regretted it every day since. He did it for a good reason, though. She deserves better than a blue-collar mechanic. But when she returns home, and he finally experiences that special side of her that calls to him, he isn’t sure he can let her go again.