Please help! Should I tell him?

My friend in the air force came to visit me twice during his two week leave. I didn't really think much of it at first, but I was glad to see him. I had not seen him since I was 16 ( I am now 19), but we talk a lot. I am in college, and he used to call and fb me quite frequently. We got pretty romantic with eachother- saw a movie, drank together, had relations, etc. On one of the nights, the last night he was here, we got into a little bit of a drunken altercation and he left. The next day I called him, and he had gotten to his new base. He said it was fine, and he apologized for leaving. I didn't miss him much at first until one or two days after he left. Now, unfortunately, I think I actually like him. Mind you, he is quite a few states away from me now, and I will return to college in August. I still talk to him a little, but I got drunk one night and tried to call him. The next day I sent him a fb message saying "I was having a crisis last night and you didn't answer!" I think I was going to tell him I like him. I do like him, but I feel embarassed/ stupid about it. Now he wants to know what I was going to tell him, and he told me it's hurting our friendship that I am not telling him. What do I do? Do I tell him? I know he is physically attracted to me, and he hinted at liking me before he came... and he went to great lengths to talk to me. I just don't know if he still feels that way after the last time he came here. I just got out of a two year relationship in April, and really don't want to let myself get hurt again. Please give advice