how can people do this?

firstly, yes im drunk, but tonight i went out on a normal thursday, lots of students, and then this girl cant keep her eyes off me, and my friend was like, shes looking at you all the time. so an hour passed and i saw her again in a different bar and she was really hot. and then this guy starts being close with her and biting her cheek, and while he was doing this she was looking at me! So afterwards, me being abit shy, my mate goes and ses to her, hey my mate wants to know if you want to exchange numbers, and she ses she has a boyfriend but she thinks im good looking. What a b***h, how do people do this, eye up other people while kissing their other half? That's messed up :(

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