Probably because you have unsolved issues with her or because you still like her.
Maybe not now, but there will come a time after you have truly gotten over her that friendship will be possible if you want it.
JoJo
All of them.
Miley Cyrus.
YES! YES!
No
maybe its because they still have feeling for there exgirlfriend and the girl may not love them back. some boys do get upset about that!! Or they just dont like the fact she has found someone better than him. maybe not they may not like the fact that shes moved on and he just cant
Try talking to her again
He is probably just afraid that his exgirlfriend would get jellous and do some thing to his girlfriend, if she found out who his new girlfriend is.
First all you Haft to do is find a Date and Go on a nice date at a place you like and you'll forget all about Your exgirlfriend
Gaia Polloni and before her, Tanya Andrew
U do something romantic something she will never expected