Help letting go of an unhealthy situation
A couple of months ago I managed to free myself from a harmful "relationship". I found out that I wasn't the only one in his life, that there were many, many more and that he didn't care about me in the least. From the beginning I had a bad feeling about the relationship and the only reason I found out what I did was because I confronted him and pretended that I had somewhow found out and when I had in fact made some lucky guesses. He eventually confessed and his real self came out. To say the very least, I was completely shocked with what I saw. He was completely cold, showed no remorse, guilt or shame and actually laughed at my pain. The original mask of a charming, kind man with seemingly good intentions became cold, manipulative, deceitful, entitled, empty, spiteful and what seems pretty close to downright evil.
Once I saw this side of him, I immeditaely ended it and refused to meet with him and get sucked back into his drama. I cannot cut him out of my life entirely because we are in the same social circles. And besides that, I fear that if I were to attempt to remove him completely out of my life, he would retaliate by tarnishing my reputation. My problem is that even though I know exactly who I'm dealing with now, I'm having immense trouble separating myself from him. There are days where I feel like I couldn't care less about him, but there are many more where he invades my thoughts and my dreams to the point where I cannot do anything else but think of him. I sadly still catch myself fantasizing about what could have been, and I find myself admiring his good traits. Then I remember that those traits were more than likely nothing but an illusion to lure me in so he could do with me as he pleased. Its been months since I ended it, but the frequency with which I think about him hasn't decreased. I also find myself wanting to get his attention back, even try to make him angry as a form of revenge even though I know that will probably only lead me to getting sucked back into his game.
I find myself constantly anxious, checking my phone all the time for messages from him, or checking sites like Facebook to ensure he hasn't posted something about me that could be damaging just because he's angry that I'm no longer bending to his will. He also tends to use each woman in his life to make the others jealous and unfortunately it works on me, not that I show it. I can't eat or sleep properly, this whole issue is busy taking over my life. What can I do to get him out of my head for good? I am well aware of the contradiction between my fantasies and the reality of the situation, I just don't know how to force myself to let go of the fantasies and hope and accept the situation for what it is. How do I reclaim my life?