Interesting. I think i have the same thing, but the other way round. The thing is, I know that she likes me and I know that because her friends (as well as mine) have told me many times that she does.
The only problem I have is that I don't want to arrange something formal, but every time I invite her somewhere, something seems to come up. I'm not sure if she's nervous and feels obligated to make an excuse, or if she's simply lost interest and her friends are toying with me.
Trivialities aside, I'm not sure if I even want to be a) in a relationship and b) with her and not someone else. She's smart, witty, attractive and I can't really fault her (she's younger than me, but I'm nitpicking here), but... i still don't know.
Sorry to hijack here...
Thing is... there's another girl. My best friend is going out with her's and, obviously, a lot of information passes between the two.
To be honest I don't know if my indecision lies with the two girls and making a decision (that sounds awful), or if it lies with me - not wanting to go out with either of them.
I talk to them both on msn, both in person but neither are that frequent. I don't know why, but I get the feeling that everything would've been much better if no one had told me the way they felt and something might have happened naturally, but now everytime i speak to them it feels artificial and i find myself either trying to impress them, or trying to say as little as possible to avoid saying something stupid.
To top it all off, the fact that I'm aware of all of this and I analyse it all means that I can understand why I do the things I do, yet still have no idea why they do the things they do. The one thing I would ultimately love is for either girl to say openly 'I like you' or something equally as arbitrary just so that the air is cleared. I know this is terribly weak and even lazy of me to not simply do this myself, but the problem is I have a seperate choice to make. The truth is that I'm worried i'll end up still on my own and i will have wasted a (or 2) fantastic chances.
So my advice to the op, is come out and tell him. Put him and yourself out of your misery because trust me, he is probobly suffering as much as you are.