Girl gave me extremely clear indication of interest and her contact info despite having a boyfriend, what is going on here?

Anonymous

I work with this girl, I was on shift with her last week and the entire time you could feel something between us. She would constantly stare at me and initiate conversation. She would take any opportunity to get very close to me physically. She would also constantly tease me. Nothing happened but we had another shift together the next week. She showed all the same indication of interest but this time she suggested that I give her my number. I start texting her and right off the bat she mentions she has a boyfriend. I ask her what the purpose of talking to me is and she says as a friend. I suggest the idea that it is probably not a good idea for us to be talking and that there should probably be nothing, not even a friendship. She then protests this idea saying her boyfriend allows it and I am like whatever we can just talk. I assumed though that since she has a boyfriend she would be hardly receptive to my texts but that was not true. She replies always almost right away, and actively tries to keep the convo going. So what is happening here? Am I just another option? Am I just attention and validation that her boyfriend doesn't give her enough of? I mean I would never even feel comfortable being in a relationship with this girl ever because now I know how she acts behind her boyfriends back. Women man, I tell ya, truly an enigma. Like I truly don't even care what the outcome is here, I just wanna understand it.

Girl gave me extremely clear indication of interest and her contact info despite having a boyfriend, what is going on here?
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