Me and my fwb had it clear that it was just sex and we werent in a relationship or anything. So today she called me in the morning and woke me up and I told her I was at this other girls house. She asked if I had slept with her and I said well obviously, why else would I be here in the morning. She didnt say anything for a moment then said oh. I told her she shouldnt have a problem with this and she said she had to go and hung up. I texted her later and she didnt respond so I havent been able to talk to her since then. Whats her problem? Is it normal a girl cant handle being a fwb?