Why did he turn pale when he saw me?

I noticed that a guy who lately has been avoiding me, turned super pale when I noticed him and said hi to him, does he hate me or something? And seemed stressed out maybe he was hoping I didn’t notice him but I did,

im obsessed with him but I never show it and I try my best not to so that I don’t scare him away but I guess he still knows so he does anytime to avoid me…

could he like me too? Or does he just dislike me so much that seeing me in public and me noticing him and saying hi caused him intense disgust or anxiety that he turned pale

Updates
15 d
He used to like me 10 years ago we used to like eachother but then I heard rumors about him and I turned on him but then took it back cause I was too inlove but it was too late he ended up friendzoning me
Why did he turn pale when he saw me?
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