<human>: Can you provide a brief rundown of the text in within 3 sentences?

I have an ex. We broke up two years ago after I found out he spent much of the four years of our relationship cheating on me with various women. Two of the women were close friends of mine. So I lost three important people that I loved, at once. When I found out, he avoided me. He never came fully clean about his actions, and as a coping mechanism he hid away. I didn't want to degrade myself by seeking him out when he had hurt me so much, so we just never spoke again.

Three months after our breakup, he met someone else and they seem very happy. Meanwhile, I've struggled majorly with trust and anxiety issues in my relationships ever since. 

I've had to move into the town in which he lives and now I'm trying to face the high likelihood that I'll eventually run into him and his new girlfriend. Even thinking about this, my anger and resentment over how he treated me makes me feel like I'm dying inside.

I want to rise above it and not allow him to waste any more of my time feeling anger, stress and upset. But it's already been two years, and I wonder if I'll ever get there.

Any advice on what to do when thoughts of an ex still makes you feel this way, after *far too long*?
<bot>: BF cheated on me, a lot, I broke up with him. It's been 2 years and I still see red when I think of him and how he treated me. How the hell do I not feel that way anymore?