Meeting up with ex boyfriend this weekend...advice please!?

Well he broke up with me about 3 months ago and his reason was that he needed to focus on college and put 100 percent into it. Right after breaking up with me he called and he said he wasn't sure if he made the right choice. We were going out for a year and a half. I was trying to move on then a couple weeks after the break up he suggested we should still be friends and I was pretty iffy but I still talked to him and what not. Then he asked me if he could take me to my prom and now he is going to be here the whole weekend for my graduation and everything. He then asked me last week if I still liked him and I told him when he comes here to talk before prom I will explain my feelings to him. Then later that day I asked him if he still liked me and he said he did and that he missed me. Then he asked if the feeling was mutual and I told him it was and he said we can slowly work with it. He is coming this weekend and I feel like I have so much to talk to him about. What is your opinion on this situation?