What does it mean if a guy stops talking to a girl when she refuses to be sexual?

If it was the third date lets say, and he’d been texting her a lot about both personal and impersonal things. When she sleeps over a few hours at his place and she refuses to do anything thats sexual, does that determine his disinterest in her romantically if he stops texting her after that? Or, is it more likely that he never really wanted anything romantic in the first place, just sex, so he doesn’t want to pursue it anymore.

I tend to be attracted to assholes as I have bad judgement on determining who is one and who isn’t. So every time I’m disappointed or heartbroken I’m left puzzled and I try to understand their perspectives.