I dunno, he just kept telling me how much he loved me and he knew I loved him too. I guess after a while I just gave in. BUT to this day I don't know if I really loved him that second time, or just felt so bad I gave it a second shot.
If she really did "fall out of love", it will be hard to make her "fall back in love". And maybe shse didn't show any signs of not loving you because she didn't want to hurt your feelings. I know that sounds shallow and bad on a girls part, but sometimes it really does happen. (sometimes guys do the same thing)
I hope you can get to the bottom of this without getting hurt again! BUT, if she stands by her decision, it might get her upset to hang out and do stuff if she knows you still love her and will try to get her back...ya know?
Give it time (and it may need lots of it), and patience, and let her make up her own mind. And be prepared to be okay with her decision.
Good luck with it all though!
Never regret something from your past, everything happens for a reason.