Most Helpful Guy
Did he know you had been on a date earlier when you came by his?
Anyways when you spent the night it sounds like he was all about you. It could just be that he got what he wanted and was ready to move on, but he didn't have to act like he did once he got his booty call. I'm leaning more toward he really cares for you, but doesn't know how to express himself, and is probably jealous. But it could go either way, you should just be frank and ask if he likes you more then intended, or if he's working on someone new.
Most Helpful Girl
There was also a point when he wouldn't pass me my phone because he didn't want me reading texts from other guys.
First off, he sounds insecure. Secondly, you mentioned going to his house at 2 am after you had gone on a date with someone else that day? Don't make things too easy for him, guys like a challenge. Maybe he's not sure what to think at this point. The best way to find out what's up is to talk to him.