gonna give you a bit of advice and trust me it works for every problem that u dont want on ur mind, at the first instance that ur ex pops into ur head start to think about a sink tap, use ur amigination to make the tap start running on full and slow it down untill there is a only a few drops coming out it will be hard at first but keep at it , do this with will power and i promis it will work, its will stop u thinking about ur ex for that moment and after a week of doing this you will start to realize that u dont think of ur ex as much anymore and after 2 weeks you will realize those memorys are being washed away from ur mind and u will start to feel happy again, after a month or even sooner for some u will not even think of ur ex coz all those memorys have been replaced with new ones. think ur self lucky i read this coz i have been through ur pain but i had to pay for that advice and i think all people should be able to have it for free, good luck