Is he interested?

Ok so, I have a question obviously but here is the background information for my particular situation. I have known this guy for about 7 years. I went to high school with him and his younger brother. I got a long well with both, we are all into music and musicians for example. Anyway, he and I got along as I said, but it was never an attraction thing. I thought he was hot but of course he didn't know that and I don't really think he noticed me that way. A few years went by and we kind of lost touch until the amazing yet evil certain online network site came across my lap a few months ago. We started talking again and his first comment to me was basically wow you look really good. All that has really changed about me in my opinion is I'm older and my hair is a lot longer. (I used to have short hair) We've since been talking a lot and confided in each other about our present situations. He has a daughter he takes care of on his own, and I am going through a seperation. I obviously am aware that we've found a common ground in each other with that as friends, etc. and obviously we are both probably no where near ready to start a relationship. That being said, I've come to really like him. I am usually up late at night as I work from home, he does also so he is around late at night most days during the week. He phones me as well and we definitely have a lot in common. I am a singer/songwriter and he is too. He also works with a producer and is involved in the recording process, etc. He has listened to my own original material and has decided he wants to help me with it. So last week I went in to his place and we worked on some music together. I met his parents, and his daughter. He picked her up from her dayhome on the way to drive me back into the city. So it almost seemed like he wanted me to meet her. I feel that is a privalege and I also feel a big deal as a single parent. Mind you at this point we haven't discussed anything of the sort about a relationship or liking each other or anything. We have a lot in common and conversation is never lacking. I feel that the fact that he is helping me with my music either means a) he likes me b) he believes in it that much or c) both. I also feel that he wouldn't open up to me about his situation so much if he didn't like me because in my experience with men, they don't open up to just anyone. After we had gotten together to work on music, we talked online and the discussion of us sleeping together came up. We were both very flirtatious, which we have been in the past also, and he basically said he was debating on whether or not it was a good idea and mentioned us working together. I made sure he knew I definitely have no expectations and I made sure he didn't feel pressured or anything, he said he wasn't and nothing has changed as far as how we get along since. The topic has not come up again, however. He has given me different compliments on various occasions, such as "You're hot", "You have a multi-faceted personality", "You're talented", "You're easy to talk to and down to earth", etc. and obviously if he was even thinking about having with me he must be attracted to me that way. Last weekend my roomie and I invited him out but he couldn't find a sitter. (The next night he had one but not the night her and I were going out.) The day her and I went out he and I talked online and he basically said he wasn't sure what he was going to do the next night he had free from his daughter. Said it was boring in his town and he might come into the city, but he doesn't really know a lot of people. I kind of felt like he was hinting at me to ask him to hang out, so I said if you can't find anything to do give me a call. He never ended up calling, and while disappointed of course, I really wasn't expecting it. He did however message me online late that night after he got home, but I missed it. We talked on the phone earlier tonight (he called me), and had a great time talking like usual. He said he ended up going to karaoke with a guy friend of his. I guess based off of some of the ways he's acted, I get the vibe he could be interested. Although the fact that he didn't call for the opportunity to hang out with me, hasn't really said he is interested or anything makes me think maybe he's just not that into me. He talks a lot about his ex girlfriends and how "psycho" they were and he is really into zodiac signs. (Our signs aren't compatable lol) and he seems to follow this same pattern of girls who really aren't right for him and treat him like crap. I know he doesn't expect anything from me for helping me with my music, and I definitely do not want to abuse the help he is giving me. My feelings for him are seperate from that. I also know like I said earlier that we are both not ready to be with someone else seriously. He told me earlier tonight he would really have to fall in love with a girl to get serious again. I feel the same way but I didn't say that. Above all I value our friendship the most, so I don't want to do anything to jeapordize that. Even so, like I said I definitely have feelings for him and I guess I'm wondering if he is interested too? He is driving me crazy....lol