Not sure where to put it, but I'm guessing here..

I read this manga a while ago, and I want to read it again but I can't remember what it's called. It's about this really shy girl who was being bullied at her old school, she transferred to another school, make friends, got a boyfriend, and had to transfer back to her old school where she got bullied even worse. She finally told her dad about it who didn't believe her at first, and her stepmom had to step up and make sure the dad did something about it, and everyone lives happily ever after. Anyone know what I'm talking about? Thanks.