Confused

Alecia
Ok so I've been talking to this guy I went to school with; he use to have a huge crush on me; but he wanted to have sex but I wanted to wait but he reassured me that he wasn't just using me that he wanted something more with me so we had great sex! The next day he just stopped texting me in the middle of our conversation and hasn't texted me back.. It's been 2 days. I really like this guy and he made me want a stupid relationship again and it's been a year for me. But then he went and did this.. Please tell me what to do...