Why does he stares but not say a word?

Me and my friend like each other but end of last year we had a problem. We haven’t spoke since. But we are in the same school and classes. Everytime I walk in class, he stares at me until I sit down. But he says nothing. Today him and his friend was in line behind me and my friend, but he said nothing…

I noticed if I caught him looking at me while he looked away on time, he still has the same expression of being nervous and butterflies around me as he did last year. So I feel like we still have mutual attraction. And no I’m not gonna approach him since I was the last person to text him by saying sorry and to talk about the situation, which he never reply.
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I’ve been trying my best to not do any eye contact since I feel like he never say anything after our problem last year.
Why does he stares but not say a word?
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