If he's not jealous- is he not interested?

I told my crush about this creepy guy at my work place, and at first he was like "that's creepy... But you should be flattered" and I told him that my coworker asked me to a party, and said "everyone has to sleepover" and my crush responded with "the f*ck"? I feel like a friend would react the same way.

Is he not interested?
 
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