Romance: FMC‘s family owns a cabin by a lake and wants to rebuild/make an air bnb out of it and takes her friend with her. MMC is friends with her friends boyfriend. MMC and friends (or teammates) book the cabins around the lake for vacation.

[Em]

I remember:

He is still pinning after her. They have history.
She is still angry.
Everyone calls him by his last name, she doesn’t know his first name.

First meeting: He helps her build her bedframe they where intimate and he left (it was a misunderstanding)
At the lake:
he builds her deck
He sneaks over to give her a T-shirt to sleep in
He swims every morning and she watches him