Last Good Thing by Heather Young-Nichols

Losing my father wasn’t the hardest part of going home…
My parent’s divorce right before senior year meant that I had to move away with my mom. Four years ago, I left behind, not only the dad that I adored, but also my best friends, and the boy who unknowingly owned my heart. Now with Dad gone and loose ends to tie up, I have to go back. To the town I’d promised to never return to.
Being there means there’s no chance of avoiding Zac or hiding my broken heart. Then I discover all the things my friends never told me. Zac having a kid with my former best female friend seems like the biggest. But I’m wrong.
Sticking to my plan of taking care of Dad’s estate and leaving this town behind me is going to be harder than I thought. They forgot about me. Can I forgive that or all the secrets they’ve kept hidden?