I like him so much that it hurts, I want to give up but at the same time I don't?

So there's this guy that I'm on the same class with. At first I was saying that I like him as a joke. But now it isn't. And I like him so much that I can't get him out of my mind. I'm always excited to go to class every day and I'm sad when he doesn't show up. But then, things changed. He asks about me to my friend, "Is _____ coming with us today?", his face changes when I'm feeling unwell. He keeps sending out mixed signals that I'm getting so confused. I'm getting ideas that I don't want. I'm too scared to assume. It hurts to like him.

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Should i give up or keep on assuming?
I like him so much that it hurts, I want to give up but at the same time I don't?
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