Why does my professor ignore me?

So I have this professor who keeps talking to or making eye contact with everyone else except me. I have asked him genuine doubts but he gives me answers with minimum effort
And I haven't really done anything wrong to piss him off.
I might have a slight crush on him.
But I haven't done anything which will give him that doubt as well
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Also all my fellow batchmates also crush on him too!
Why does my professor ignore me?
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