As a peace maker I’m gonna give you a fun idea for a book.
Right, let’s call our main character “the girl”.
The girl has a boyfriend who she’s been with for 5 years and he cheats on her with her sister.
When he broke up with her, he told her that they were getting engaged and he has actually proposed to her when they were still together.
The girl moves away to college and moves in with some guy called Jesse. And you can develop their love life sort of thing. Oh-oh and you should make sure that the girl’s sister invited her to the wedding. And she has a breakdown and all that lovely stuff.