Looking for advice after a breakup !?

i split up with my partner of 14mths cause we didn't seem to be going anywhere - that was about 6 weeks ago. we;ve been in touch and last week my ex went mental after hearing a rumour that my friends where setting me up - i was apologetic and listened as my ex cried and ranted etc ... she called me saturday (two days after her above call) to say she met someone else who we work with the night before and wanted me to know - am not sure what to do or think - i still love my ex but this has really knocked me - she says i'm still hers etc and yet shes already playing the field - am i just being manipulated ? or is it really over and i just have to deal with it ?

She's doing what many women feel they must do after they've been hurt: SHE'S FUCKING WITH YOUR HEAD, MAN. You need to cut off all contact with her. Block all her phone numbers, her e-mail, delete her off your MySpace friends. Just cut your losses and move on with your life. And while you're at it, try to get your friends to make that rumor true and have them hook you up with someone.