How do I tell him I don't want go out with him?

There's this guy a year older than me that goes to my high school and hangs with my friends and I just about every morning before school starts. He came up to me during P.E. a little over a week ago and started talking to me like I've known him for a long time. When it was time for gym to start, he gave me a hug. I had a feeling that maybe he had a crush on me. The next day, he came up to me and put his arms around me. He told everyone near us that I was "all his". He continued doing that the rest of the week and on Friday, he came up to me at lunch and asked if I wanted to sit with him. I began having a crush on him and talked to one of my very good friends that knows him. She was disgusted that I like him and said I shouldn't go out with him because he is annoying and he talks about the most stupid things. I continued liking him, but there was also something about him that I didn't like. I couldn't quite figure out what it was. I talked to other people about this and they also said I shouldn't go out with him. This past Monday, he acted as he usually does towards me in P.E. and at lunch, he asked me for my number. He called me later on that night and I talked to him for a few minutes. Yesterday, his girlfriend broke up with him because they weren't talking much and he told me that he'd have to find another girl to go out with. (Hint, hint.) Today, we sat together at lunch and later on, he gave me a note. I read it and about died. Sure enough, he wanted to know if I would go out with him. Well....I was afraid this was going to happen. I don't really want to go out with him because: A. I agree with my friends that he IS annoying and rambles on too much about worthless crap. B. I feel like I don't know him well enough to even consider going out with him. C. I've liked this other guy for almost a year now and he likes me too and I don't want to get in the situation I was in 2 months ago where I liked my long-time crush over my actual boyfriend. How can I tell him that I don't want to go out with him without being mean and making him think that I hate his guts when I don't?

Heres a few tips from a guy.

1. Never EVER say that you would go out with them but you already are seeing someone.(even if it is the truth) It does more harm than good.

2. See 1 (Happens alot)

3. Don't be afraid to be blunt, I would much rather be rejected than let down nicely. It makes the getting over period shorter.

4. Try to keep it quiet, if you tell the world what happened you may really hurt him.

5. A straight no is better than a maybe any day of the week.

About your crush. If you want anything to happen you should make the first move. Just becuase a guy doesnt say something doesnt mean he wants to. Alot of times he is just afraid as you. When you get down to it most guys like haveing someone else make the first move. The ones that need to make the first move are assholes anyway so its not worth it.

Good luck.

Walking up to you and putting his arms around you and crap like that while he has a girlfriend AND you didn't know him that well to begin with is just plain creepy. I'd put the kabbash on that to his face first thing. Second, I'd just tell him no. Don't drag it out. Just say no. And I'd put a little distance between the 2 of you too. Touchy feely people give me the willies anyways. His girlfriend probably broke up with him because he's a creep.:goofy: