It was a childhood lovers book. The female lead was named daisy and had a twin sister rose.
Daisy had a childhood boy bestfriend but lost contact when they moved away due to the death of her and rose's dads death. Rose become close with new stepdad, daisy did not. They moved back to the old town and daisy starts to look for her bestfriend.
Also the reason daisy wasn't able to find her bestfriend because the name she remembered was actually his middle name and he now uses his first name. Also they become a couple. And their was some tension between rose and daisy.
Also the bestfriend and daisy became friends again but she didn't knew his identity. And daisy and started drifting apart when rose started dating Daisy's crush.....
r/whatsthatbook