threw it in my face that we slept together the first night we met hence why i'm a "slut"
There are quite a lot of people who had sex on the first date who went on to be married or have long-term relationships for decades.
My sister had sex with her husband on the first proper date and was married to him for over 20 years (until she left him).
It's a really dumb thing to say.
Also, if he thought you were a slut for having sex on the first date - why did he get into a relationship with you and bring kids into the world with you????
Wouldn't he have to be mad/stupid to do that with someone he thought was a slut?
And he's also calling himself someone who takes advantage of a "slut" since he happily had sex with you on the first date.
He's not making much sense.
I'll tell you what I think it is ....he's one of those guys who are happy to move on to other women, but don't want "their" woman (even if it's an ex). and the mother of their kids moving on herself and getting with other guys; so he was trying to make you not have sex/not date/be scared/be down on yourself.
He was also just being a nasty bastard .... For reasons best known to himself. He wanted to hurt you and put you down and try to make you feel bad about yourself. Because that's his personality.
No decent man - even when finishing with a woman - says things like that. I've ended relationships with decent men (and vice versa) and that don't behave like that. They walk away with a bit of dignity and respect and discretion (for themselves as well as the ex).
And that wasn't with kids involved. The fact he's act like that when you're the Mum of his kids .....
He's a utter dickhead. A nasty one.