Sociopath & serial cheating

Putting this on anonymous... I already know ya'll are gonna say I'm a POS and I know it....

Ok ladies, I am a diagnosed and certified sociopath and I cannot for the life of me experience "love". Sure I like men and enjoy sex, but that's as far as it goes for me.

I had a FWB situation going on with a guy and he said I had the green light to sleep with whoever I wanted - okay, no problem there.

The problem now is he decided one night that he wanted to be in a relationship with me and only me now and says he's in love with me etc. I don't know what that feels like...

I tried to make it work, but once I have a few drinks or even just talking to a guy I've slept with, everything goes out the window and I'm back to sleeping with other guys (friends, exs, bar flies, etc) and then apologizing for what I did, but the real problem is I don't feel guilt, remorse, shame... none of it, and I keep doing it. I want to stop, he's a good guy and doesn't deserve what I do to him, but I just can't seem to.

I don't think I can ever be in a monogamous relationship, I don't feel love or guilt. Perhaps I'm just not into being in a relationship with this particular guy? I have successfully been in a relationship before without cheating or wanting to, I was content enough, but never since then.

Anyone out there in my shoes?

EDIT: I have told him that I didn’t think I'd be able to stay faithful to him, so he was/is aware, but he's still in love with me and doesn't want to break up.