Does my "crush" like me?

I'm so confused. It's not even a crush, he's way more than that! I do my hair, wear cute clothes and all that stuff just to impress him. I act like an obsessive idiot around him. I also try to flirt with other guys to make him jealous and he doesn't do anything...but he's confusing me so so so much. Like the other day he was being really funny and flirty and we were sharing food and stuff and then today, he talked to me but only after I started the conversation. He's sending me such mixed signals. It's like one day he likes me and the next day he doesn't. I don't think he knows I like him because I haven't told anyone...I think it might be obvious though :( For some reason i have a feeling deep inside my heart that he likes me too... I honest to God don't think of anything other than him... I have no idea what to do! I'm so confused and I just need help :( I'm so lovesick.