Is this rude to say if we don’t really say bye or good morning?

I thought we were cool because we had a lot in common… I notice that he seems hot and cold but I notice he talks to my other coworker easily and she may like him. I was attracted to him but hey I’m not enough lol

so I’m going to tell him that he’s not obligated to say hi to me or good morning or anything! Ever…

do you think that’s okay

Is this rude to say if we don’t really say bye or good morning?
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