<human>: Hello, I hope this is in the right category.

I ran into to a friend [20/F] yesterday and I started talking about hanging out my other friend who I see every 6 months (we go to different schools and he live across the country) and debate politics for hours like we did in high school. My friend [F] asked me why we do this and I answered jokingly " Have you ever had sex with a guy and he just left after it was done..." (this is like that but intellectually and it still allows us to be friends even though both of us have changed over time [yeah its a bad joke]) and before I could finish she blurts out " Are you angry at me for not having sex with you?" Then every thing was awkward and i said goodbye. For the record I have never flirted with her I don't even know how to flirt. Can someone help me I don't know if I present myself like this to other girls and that makes me a creep I have never noticed it before.

Could you distill the essence of the text into 1-3 sentences?
<bot>: Girl I know blurts out accusatory statement about me wanting sex and I don't know how we got to that.