What do I do now? Help

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I’m on a new relationship and we’ve been together for 2 months now. I’m 20 & he’s 21. I really do spend a great time with him and I can pretty much say that I love him.

I’ve been in some relationships before and this is clearly different from the others, for me.

I’ve been in love with someone before, with whom I’ve been together for 3 years. Anyways, we ended things last year, even though we still reached sometimes at each other but I decided it’s for the best to have no contact at all. He still has feelings for me , but somehow I lost all my feelings towards him.

In the other hand, while I’m in this brand new passionate-relationship, I can’t stop but think that I’m not enough. We go out all the time, we both love the same things, get along extremely well, and he really respects me.

He’s not been in serious relationships before, which he doesn’t even consider relationships. But I can’t stop thinking about the last person he’s had a thing with.

He didn’t care much but the thing that bothers me the most is that he cut her off when he find out she wasn’t relationship material (she’s been having sex with his friends ) and that she’s been lying to him from the beginning that they started talking. So, they technically weren’t together so it’s not that she cheated but long story short — She didn’t turn out who he thought she is, so he cut things off.

Before we got together, we worked together for 1 month and we were friends. He’s known me before I started working with him and he has always liked me, but at that point of time I didn’t care. He was just a normal person to me. Anyways, we had a great friendship and we talked about everything, even exes and stuff. He told me that he hated the fact that he was lied to.

And now, that we’re on a relationship, I just feel like he was hurt or he still is. I keep thinking that I’m not enough, keep thinking thay maybe he’s not over her yet, if he ever compares me to her in her mind, if he loved her, if she was better than me. This is what my mind feels like. It’s just gotten so deep in my head that I keep mentioning it every time, even to him. Everytime we’re having a good time together, even when kissing, or being intimate, I get this urge of hate & anger inside of me and ruin the moment by mentioning things like “maybe someone knew better than me, maybe you liked it better with her”, or similar things. And he really hates this. He’s been telling me from the start, that he’s never felt this way before, the way he feels with me. He always keeps telling me that I’m special, that he’s never ever met a woman like me, that he thinks I’m perfect in every part of me, that I’m the only one he’s ever been actually in LOVE. That I’m the one he’s ever mentioned to his family before, the only one he’s ever got his mother & sister to know, and that he’s serious. And when I mention her, he tells me don’t cause I’m not even comparable to her. He also respects my family so much, and has a great friendship with my cousins.

But it’s just this gut feeling that I just can’t stand. We keep fighting over the same thing I start over and over again, and then I ignore him until he comes back hard after me. He blames it on my overthinking and he really tries to get it out of my head but I just can’t. I don’t know why but I sometimes feel like I’d rather breakup then continue feeling like I’m not enough, or that he’s still hurt from his “ex”. I don’t what to do, or if anything’s wrong but I can’t control these thoughts. Any help?