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

My ex and I dated for 3 years in high school. It was a typical stupid relationship that got dragged out way longer than it needed to because of other drama. Things did not end on a good note. At one point I hated him, now every time I think about him it disgusts me that I wasted so much of my time with someone like him.

He was very manipulative and did a lot of things (lying all the time, possibly cheating). He also molested me in public a lot during the first year of our relationship and because I was stupid and young and didn't have anyone to talk to to tell me that I could make him stop if it made me uncomfortable , I let him until a year or so later when I finally started making him stop touching me in anyway in public. 

He turned a lot of my friends against me and continued to be "friends" with his ex during our relationship (which I found out about later) even though she caused a lot of problems for me at school by spreading rumors and hounding me on the phone. He was also very emotionally and verbally abusive towards the end which finally made me dump him.  

It's been two years since I dumped him and cut him out of my life and I've found out he lied about a lot of things since then. I'm in a much healthier relationship now with my college bf but the more I get into my new relationship, the more I can't help thinking about how terribly I was treated by my ex. I feel so disgusted that I stayed with him for as long as I did. That I believed his lies as much as I did and even worse, I can't believe I lost my virginity to a slimy asshole like that who probably cheated on me when I could've avoided all of that mess and waiting until college to meet my amazing current bf. 

I know it's not rational but I can't help those feelings. How do I get over these feelings and stop having them? I just want to forget I ever knew this person. Or at the very least, stop remembering all the terrible things he did to me.
<bot>: my ex - first serious bf - did a lot of crap to me and I can't stop being bitter over it.