Does he like me?

I like this guy a lot and somehow he found out because we share our last period together and I walked past this table and I heard someone say that I liked him. Sometimes I catch him looking at me and he used to tease me during class. He doesn't talk to me now but that'd have been times where he is doing nothing and then when i look in his direction (but not at him) he quickly acts like he's doing something. I keep getting mixed signals like that he never likes anything I post. I also dont really know if this means anything but the one time we texted he didn't abbreviate any words or use any slang like he always does. Ik this sounds really dumb but I need your help!!!!!