There's this girl her ex boyfriend dies in a car crash she slowly starts to became friends with her ex best friend but her ex boyfriend is a ghost and he doesn't like them being together..

Please help that's all I got?

A paperback? A YA book?

Yes it is...

How long ago did you read it?

Maybe this one?

Seventeen-year-old Holly Mullen has felt lost and lonely ever since her boyfriend, Rob, died in a tragic accident. But she has no idea that as she goes about her days, Rob’s ghost is watching over her. He isn’t happy when he sees his best friend, Jason, trying to get close to Holly—but as a ghost, he can do nothing to stop it. As their uncertain new relationship progresses, the past comes back to haunt Holly and Jason. Her Alzheimer’s-stricken grandfather claims to be communicating with the ghost of Rob. Could the messages he has for Holly be real? And if so, how can the loved ones Rob left behind help his tortured soul make it to the other side?

Amazon.com: Wherever You Go (9780547501512): Heather Davis: Books

Yes that's it thank you sOooooooo much! I can't remember I ganna buy it now!