I can't tell if he's into me...help?!?

kay, so there's this guy...the one I actually mentioned that I wanted to give my number to in my last question. So What happened is, he sat next to me in cl, and then we talked. He waited for me after cl, while I struggled to get my backpack closed. Then we walked a little bit, and talked. He told me he commutes to campus, where as I live in a dorm...so I was like you should come hang out with me sometime. He was like I don't know if I'd be able to get in, so I was like we should exchange numbers. So I gave him my number. And then we went to our next cl after having a little break. Cl gets over, and we don't really walk next to each other. Then we end up next to each other at the crosswalk and he's like I still need to give me your number, and I'm like yeah you should :) Then we walk a little more to where he had to catch the max. He's like this is my stop, so maybe I'll see you tomorrow. Then today I hadn't heard from him, so I texted him. I was like hey, and then we texted for a while until he had to go to work. And now I just really want him to text me sometime, so I know he's interested. Also, he added me on facebook today. I'm just worried that he has no interest in me, and that he likes someone else....gaaahhh. Any comments would be nice :) Just let me know whatcha think, thanks!