Girls: Is it all just a joke?

[Bob]

I'll keep this short, we met in college, we talk quite alot, we also flirt quite alot, she thinks i'm "hilarious" and that I "Make her day", she touches my leg whenever she talks to me, she pushes her body into me when shes standing next to me, she smiles every time she sees me, she giggles whenever I compliment her and she talks about me to her friends.

She hasn't done anything that makes me think that she may not like me, except last week she popped up to me on facebook saying she really liked me, I then replied saying that I like her too although I thought I made it pretty obvious enough without saying it, then she replied about 3 hours later saying it wasn't her who said it, and that it was a boy, the boy she said that said this to me she said was her boyfriend too, but her relationship status on facebook is still single, and I talked to her on facebook again not long ago and she acted like it never happened?

I went back to college today, I wasn't embarrassed about it or anything, or worried, and she actually seemed happier to see me, we didn't really talk much as we only had one lesson together and in that lesson we only had about 10 minutes to talk but she hasn't changed except from the fact that she seems like she wants me there. All in all I just want to know who said all that, and if she really does like me, shes the only girl that has shown any interest in me when i've flirted with her and shown I like her. I'm not sure if I just have a 'heart of stone' after being turned down by so many, or if I actually don't like her that much but, if she said no and she didn't like me, I actually don't think I would care, as cold hearted that sounds.

So was it all a joke? I'm going to ask her when I get the time to anyway, I just want to other peoples opinions on what I should expect to hear.

[Monster]

she does like you it seems pretty obvious, she joked about it not being her who sent the message on facebook but it could've been here just to see what you'd say? definitely don't ignore it, confront her.

[millie]

If you dont really care if she says yes or no, you dont have that much feelings for her yet, stone hearted or not. so i would stay friends and you might both develop more feelings, but untill you get to a point where you really want her and care/ want her to say yes just stay friends for now.
she might have felt embarrassed and used a boy as an excuse also trying to make you jealous/ playing hard to get, by saying he boyfriend.
however you shouldnt jump to conclusions as she may have a boyfriend and is tell you politely shes not single.
so what i would do when you start to care if shes says yes or no, just say to her, i really like you, and im gutted you have a boyfriend, and see what she says! after this you will know.