Need some advice on what has happened...

[DerJack]

I would say that he seems to like the attention brought about by saying such things. Especially with this remark about making the girl feel like a slut, I mean, that's just in poor taste, in my opinion anyway. I don't know, if I were in your shoes I think I would just pay it no attention and try not to think about his claims of maybe doing another dude.