well I just recently got out of a huge relationship like dating for 2 years and she kinda left aswell. the best advice to give you is that there are better girls out there. Yea she was a great girl when yall dated but who says there cant be a girl that can make you happier. for the bestfriend thing I would probably be pissed. I would probably not be his best friend anymore but I guess someone cant help it. Just keep your head up man you will find a better girl and a better friend. My advice would be to try to get over that girl quick before u get hurt maybe u should try to hook up with her best friend give her a taste of how it feels