I dunno reading your story makes it seem like you're the one who is into hooking up with lots of people. I'm not judging you for it or saying it's a negative, but that's how it comes across.

As far as advice, I would try be a little less arrogant about yourself. I don't want to be mean or anything but you sound very full of yourself in regards to your looks. That's never a good thing. Humility goes a long way.

As far as advice with the guy, call him and tell him your feelings. Just be honest. Either he will accept that or he won't. And if he won't then you can move on.

If you send a guy a bunch of naked pics of yourself- he's not going to really respect you, especially since you're not even together or anything. I mean, if a girl I fucked around with while I was just getting out of a relationship started sending me suggestive pics n shit, I'd just consider her a booty call.

or your relationship started out as him doing things with you while he was still in a relationship that should be a pretty big red flag right there.