I need advice from everyone?

Okay, since I hate writing long paragraphs for y'all.
I know his name and that's pretty much it and he knows my name too.
Lately, he has been in the same room as me or the same location as me.
Every single time, I walk past him he stares at my FACE, not body and I don't know why...

This has been going on for a few months or so I have lost track of time.

The question is why does he stare at me and what should I do?
I need advice from everyone?
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