I'm too Flighty for Relationships - Being Single is Better!

Hiyah all!
I'm kinda hating myself right now but it's a good kind of hate - I mean hate is never good and it still makes me feel bad but its not enough to make me go 'emo' or let it ruin my day or anything. I dunno this kind of self-loathing is kind of hard to explain.
I'm hating myself because of how horrible I am. As some of you may know I have a boyfriend and he's really a great guy but there already a few things about him that bother me...I feel horrible being this....judging I guess you'd call it and you dont know how many times I've lain in bed and tried to force myself to not think like this. My relationship with him just began a few days ago and i felt like it started off kind of strange. I mean the way we met was kind of romantic and stuff, it was at the homecoming dance, but...
He had had his heart broken by the girl he was going out with before me and she ended choosing the other boy over him but soon after that he called me up and asked me if i wanted to date him...I had a crush on him that i was trying to hide because he didnt need that kind of stress so naturally i said yes. The second day we were together he brought me to his house which was really awkward. I mean to meet his parents that soon? And not to mention that a kind of know his sister and he never tells her anything and she was kind of like "uhh..." and it was just kind of awkward...I tried not to let it get to me but...
And he also likes to snuggle a lot. A little snuggling is okay but to me it's gotten to the point of being clingy - isnt that the girl's job? He also has the weird habit of rubbing my hand with his thumb when he's holding my hand. It wouldnt bother me if he did it once in awhile but he does it a lot and its in really erratic patterns...
Also he says he wants to let me make the choice of when to make the first move which I totally respect but not when he's dropping hints...
I'm not ready for a relationship....and I think he's still got a thing for the girl - its not that easy to get over someone you loved...I think I need to end this before it will really hurt either of us and our friendship - I have to tell him that I'm not ready for dating - I can't stay true to one person right now - I just want to have fun and hang out with the guys without worrying if my guy thinks I'm flirting with them. I want to be able to be a romantic and squeel over 'hot' characters from books/movies without having to feel guilty. I want to be able to move from one crush to another or have more than one crush at once without having to feel like I'm a terrible person.
I don't want anything I've said to leak to him because its up to me to tell him...I'm thinking this weekend although it might be really awkward afterwards but....I cant let it go on more. I'm selfish and I dont want this feeling of guilt and shame hanging over my head all the time.
I want to like who I want when I want! :P
I probably seem like a real witch with a 'B' right now but....its just the way I am and i will forever be me. :)
So, Im sorry if I've lost your respect but I just wanted to get this off my chest...
Love you lots!
The Obsessionista