Need help finding this book title

[Alexis]

A young woman named [Girl's Name] meets Noah, a charming boy, and quickly falls for him. While getting to know him, she becomes close friends with his identical twin sister, Tilly

[Lisa]

Is this book new? And what category/genre is it?

[Bailey]

The only book I can find with those names is The River Between Us, but it doesn't sound like that.