I'd counter that he's a typical "nice guy".

Meaning, he's not a nice guy. He thought he could whittle her down to at least keep having sex with her. He manipulated events for "friends" knowing he'd get her alone. After her repeatedly telling him nothing was going to happen he STILL kept showing her with attention with the hope of having sex with her again ("you get the attention, I have to go home and jerk off")

There was one person approaching honesty in this situation and it was her. Op was manipulative, deceptive, at best lying to himself, and gross.