Should I go back out with this guy??? please help me?

So there was this guy that I used to date 6 months ago. Me and him were really close for a while and then all of a sudden things started to go down hill and he stopped talking to me. I called him time and time again and no response. Well finally I here that he moved away and didnt tell me and when i finally called him he said he was sorry but he didnt want to go out with me anymore anyways. So i was really upset. But i got over him. Now he is back 6 months later and weve been hanging out alot lately. He told me hes not ready for a relationship yet but hes missed me so much and wants to pick up where we left off and then go out again down the road. So basically be friends with benifits for a while. I dont no what to do because i really do like him again but i dont want to get hurt again either. So any advice would be great!