Does he just want to use me?

Hey guys, so there is this guy that I used to like, and I'm not sure if he liked/likes me back. One day he invited me to his house for lunch, we had take out and then listened to music as we were just playing around, and one thing led to another and we kissed. Things got a little hot and he wanted to give me a CJ but I was a little embarrassed and refused, so I decided to give him a Blow Job instead. After that, two days later I decided to tell him that I was not comfortable with what happened and it should never happen again. He seemed disappointed and said that I was asking myself the wrong questions. The thing is that he is 18 and I'm 17. I know that when a guy really likes/loves you he should provide, meaning that he if he wants to hang out with you he should pay for the lunch/dinner etc. But he never does. We always end up splitting the bill. Right now he asked me if I want to hang out and I said we should have cake this time, and he responded with " if it's cake ,you're gonna eat it yourself " meaning he won't get it for me. My feelings for him have faded completely but I accepted the invite in order not to seem rude. Tell me ladies, is he really the one? What could he want from me? ...cuz according to me he sounds pretty deceitful