I have no idea if this guy likes me or not?

i am 17 years old and i have this guy who gives signals but dont take action. He constantly makes eye contact, he does not take his eyes off the eye contact. and he keeps taking my stuff. But when I offer to go somewhere with him, he doesn't come. I also catch him admiring me which lead me to think that he likes me. But today he never came to me and didn't try to talk but was looking at me. why he just dont come and talk to me?

I have no idea if this guy likes me or not?
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