What is her intention?

I think she has been "testing the waters" for a while now. By trying to set you up with a friend, she was seeing if you were available. By talking about another guy, she is letting you know that SHE is available and trying to get a reaction out of you. You should just ask her out. She seems to waiting for you to do it, and it doesn't seem that she will ask you out. If you like her, take the risk. Women don't ask "why are you single" if they don't want to see you unsingle;-)

Watch out. Sometimes girls will "test" you by saying " I want to hook you up with one of my friends" or "I like this guy" to see if you get a little jealous. If she likes you/is testing you, then she wants you to say "pfft. That girl? You're prettier than her", but then again, it's really hard to say what someone is feeling.

She might really just see you as a brother; but I think the way to test that out is to tell her that you like a girl and see how she reacts. She doesn't even have to get outright jealous; you'll be able to tell if/when her personality shifts.

I bet she *did *have feelings for you. But as you mentioned, you didn't come forward. She dropped enough hints for you to pick up on them - and you didn't. All of the jealous stuff is nonsense to me. I can almost guarantee she figured you were not interested in HER, so she pushed her feelings aside and decided to move on. She probably figured you didn't want anything other than friendship, so that's what she is doing now. Giving you what she believes you want.

Just tell her how you feel. I keep waiting for this guy to do the same to me, the thing is I know he likes me, but I can't do anything about it until he grows up and admits it out loud. So, just think of it this way, you have nothing to lose and possibly something to gain.

When a girl likes a guy and he isn't coming forward and saying the same thing, she will do exactly what this girl is doing and talk about other guys. She wants you to know that other guys like her and make you jealous, when all she really wants to hear is that you like her. The last thing we want to do is look like a fool, so we create this facade to protect ourselves. Just tell her, you won't be sorry, I promise!

She knows you like her.
What she is doing is a classic trick I've seen preformed many times. She knows that you are into her, but doesn't want to let you down the hard way. The first bit about her hooking you up with on of her friends shows that she wants you to be happy, and is probably a good friend, but.
her talking about another guy is a classic, classic trick to hint at you that she is unavailable. She is single, yes, but she doesn't want you. I doubt, if discussion of this other guy is regular, that she is doing it to make you jealous.

I do concur that you should risk it, and tell her how you feel. If she shoots you down, then you know that she isn't for you, and that you need to move on. But, hell, you could get lucky.