IVE BEEN HERE brother it happens, ive run afoul in relationships and found myself checkin' on their pages and stuff like that.
The key is to find another distraction, sometimes your lust for a woman is like being drunk or addicted, you are not in your normal senses and after its all over and you are sobered up you will look back and say "i cant believe i was hung up over her!"....Checking her status is akin to taking another hit to feel good...Except she doesn't make you feel good anymore does she? Now shes an extremely negative influence on your life and livelihood, something that needs ditching!
Date! Put yourself back out there, restart a hobby, make some kind of adjustment that refocuses your attention and efforts so that she isn't the octopus pullin' on your brain anymore. Find a new apple for your eye or let it look out a good window awhile. Just don't go, don't visit that site, and every day gets better, until you're in the clear.