Does my ex still like me?

So I broke up with my ex in October, an there was a bit of tension between us for a few weeks after the breakup, but now I would say we're friends. But something is weird. He's always coming up to me i the hallway and giving me hugs, and after cl, I'm always the last one to leave, and he stayed behind and helped me pack up my stuff and everything. Also, he seems to make lots of jokes when I'm around, or he'll follow me around the clroom when I sharpen my pencil. He also gets this weird look on his face when I talk to my other guy friends. I'm pretty sure he still likes me, but I have absolutely no intentions of getting back together with him. I've confronted him and asked him why he likes me still after I was such a ***** to him during the breakup, but he started denying it immediately. I don't know what to do! He's starting to make things kind of awkward. I'm afraid he's about to ask me out again! Can somone please help me?