Sorry to hear that. I think either your girl already has the
intention of breaking up, or is a master of mind manipulation.
Based on my research, agreeing to breakup is a counter-intuitive
move, which turns the tables back on you. This may surprise you and
make you wonder if you have made the right decision (which is what
you're feeling now), and put her in the upper hand. Next, she'd not
contact you at all...even if she misses you. Absence makes the
heart fonder...and soon you'll be having doubts and initiate
contact with her again.
Or maybe I'm just thinking too much? 
then its probably a double edge sword cause i may not bother
anymore
actually, im pretty sure i wont bother anymore
