There's this guy that i met in school and there's more to the story!?

I am new to the school and I've only known him for 5 days! When I first met him he asked me if I wanted to hang out so I said yes, then we hung out friday.. Okay on friday we hung out and we were both hiigh, he "pulled out" and tried to f*ck me, but I hesitated and he respected. Soo what happened is that he just kept me, and kissing me and acting like we were going out. I was so shocked so I drove home high, and I havent talked to him all weekend. I think he is just going to use me for , and physically attracted to me.. But at the same time I think he really likes me. What should I say to him tomorrow? (AND I WANT TO CONTINUE A RELATIONSHIP WITH HIM)