Heh I had the same problem. Last 4 weeks has been hell as she cheated on me with her ex in June and then dumped me via text even though I had no idea there were any issues! There werent any but her ex seems to control her. I stopped talking to her a week ago and suddenly she starts calling me and saying she loves me, etc, etc and wants to meet up.
I let her drive 5 hours to meet up today saying we could talk things through and I'd give her another chance. Had sex then just told her I've moved on so she may as well drive home again now as I dont actually want her back and her ex is welcome to her then kicked her out of the house...
Yep, feel very bad now that I did it but at the time revenge was sweet!! And fun too

She's put me through 4 weeks of sleepless nights and many bottles of whiskey so I shouldnt feel any remorse but heck if I'm honest I do still love her but I'll never let her know that because as soon as she gains control she'll use it to her advantage again. Needless to say she has sent torrents of abuse via text but ah well its sat night so time to go out!