2.) Don't Do A Cut And Paste
When you start to get all squishy and needy inside, it may be tempting to cut and paste. You know—go out and date the first breathing organism that sits next to you. Don't do it. Nothing (and we mean nothing) is going to get you running to your ex quicker than a soured romance by someone you were just using to get over them. Spend some time alone and hang with your friends.
3.) Write A Bad Emotion List
Explore The Terrible. (Please don't juxtapose with The Wonderful). Make a list of how horrible you felt during the low times. Use logic. Sometimes we need logic. Make a cause and effect type list—like historians do for the onset of world wars. He/she said this, which made me feel like this, which is why we broke up. Viola. While you've probably talked this into the ground, it sometimes helps to see it in writing.
4.) Wear A Rubber Band Around Your Wrist
OK. We'll call ourselves out before anyone else—this is very, very self-helpy. In a group therapy, Pink, fuzzy kind of a way. We know. But it works! It probably isn't apparent now, you're too far down the rabbit hole of unhealthy obsession, but you'd be horrified to know the number of times he/she pops into your head on a daily basis. Hell, in an hour. So try to keep a record. Everytime they sneak back in, snap the rubber band. Hard. Yeah, it sounds dumb, but give it a whirl. Trust us on this one.