wth just happened?

So about a month ago, a guy contacted me online, asking if I wanted to go out sometime. After getting to know him a little better, I agreed to. Well, when I first met him in person, I ended up being super attracted to him for some reason. I even told him that he reminded me of a friend I had, which I think had a lot to do with it... that familiarity. He wasn't even, in relative terms, all that attractive. He looked like he hadn't slept in weeks and was a little pudgy... but I thought he was cute. Plus he had some old pictures up online that highlighted his best features (when he wasn't tired, overweight, etc.) Then again, now that I think back to it, his pictures were pretty misleading.

Anyway, we got along great and I felt really comfortable around him. We could talk about all kinds of things, and it was great. The first night we ended up making out and talking for hours, and I just loved it. I think he did too. He would say/do all these things that made me feel good, like look into my eyes and say, "God, you're gorgeous," or give me "a thousand kisses". I wasn't planning for things to go that far the first night, but they did.

Well, the second night, things went even further. You see, I was fighting with myself, trying to figure out what would be best. At that point, I was 25 years old and had only one sex partner my entire life. I kept thinking to myself, "You kind of owe it to yourself to explore a little more... plus you're super attracted to this guy, and he seems swell... so just do it." On the other side, there are the emotional components that I was worried about. Nonetheless, I ended up doing it and regretting it. I even told him how regretful I was of it immediately afterwards. And you know what one of the things was he told me? He told me, "It's not like you won't be seeing me again." Or some bullshit like that. Before he leaves that night, he says he'll call me.

Anyway, let's fastforward to the next day. He calls me, and I am not available; but I call him back as soon as I can--seriously, 5 minutes later. No answer. Well, I finally get a hold of him a couple days later, and he says we should do something the next day. Well... the next day passes, and I never hear from him. Fastforward about a week later. At this point, I'm getting over this guy and trying to move on; and it's going well. Until he messages me one day and asks if I want to go out. UGH. WHY DO GUYS DO SHIT LIKE THIS? Well, of course I do. I tell him I might be hanging out with another friend that day, but that's all. Then he responds with something like, "Well, if you want to hang out with another guy..." Seriously now, this friend of mine who just happens to be a guy is freaking closet gay. I was so frustrated that I was even being accused of having such character/playing games. I don't do that shit.

Well, I've written way too much, so to make a longer story shorter, the guy asked to hang out a handful of times, and each time, he would end up being inaccessible (not answering his phone, not replying to messages). I finally just sent him a message (since I couldn't leave a voicemail, since it's been full the entire month), telling him straight out that I like him a lot but that I needed to know if he wanted me in or out of his life. I admitted to him that I didn't want to get hurt or be a nuisance in his life. I also admitted to him, in a way, that I never tell guys I like them because I hate the idea of rejection, but that he was worth the risk. I didn't write it that straight-forward, so who knows how he read it. I have yet to hear back from him, and it's been a few days since I sent that last message.

Anyway, I guess this is my question. What is going on in this guy's head? Is he interested or what? I even clarified with him earlier what his intentions were; he told me he liked spending time with me and was trying to date me, but that our schedules were difficult to work around. Wait a minute, I'm always accessible... you're the one who's not answering your phone!! Someone shed a little light on this for me, because I am tremendously confused. I am relatively new to dating for my age, and I need to know what to do about this. I like the guy, but he is so damn flaky, and I can't tell if he's taking me seriously or not. What do you think?