How do you stop yourself from thinking about your ex every now and then or sending a message every once in a while because he has a gf and thats the way he wants to communicate. I don't wanna talk to him because he doesn't want to talk to me all the time. Just sometimes. And that makes me want to tell his gf and she break up with him. I really wanna make his life a living hell for popping back into my life after mentally hurting me for 3 years blaming myself on why we broke up.... and yes he apologized and moved away to Germany. And trust me. I've tried to let go. It's like some days I don't even know he exist. Other days I find myself looking on his Facebook or Instagram. I want to stop caring about him. And caring what he does with his new gf. How can I stop or cut this off. Someone please help. Because I'm on the verge of ruining his life and telling his gf because I don't care anymore. Granted ... she's doesn't want him talking to me at all yet he lied to her and still does talk to me (sometimes)