You don't know me, but I had to say: my favourite way of getting a bloke (or a girl) out of your system? Hit things. A lot. Preferably things that can't yell or press charges.
I have a bloody heavy punching bag - think it's 100 lbs, which for me is perfect - and when I've been dumped, I tend to go murder it. I kickbox, so there are a lot of flying limbs.
I do hope it helps. Or if not that, I hope something helps.