I am 21 years old and there is a chick that I was kind of into. I asked her out for drinks and I had a nice time with her. It was pretty fun and natural time. She was constantly shit testing me: asking me questions like "what is my n count?" and made it seem like she doesnt talk to other guys. But I never answered her directly and said "I'm a gentleman who doesn't kiss and tell." We went to her place afterwards and I made out with her heavily and she seemed into it until I tried to escalate and unbuckle her belt and she stopped me saying that I am a "hoe" because I never told her my n count. I refused to tell her my n count and went back home because she didn't seem dtf. The next day I go to a party and she's there but she brought another guy home and fucked him. Why is she okay with fucking him but not me? I'm not necessarily attached to this girl, but I just don't understand why I'm not considered the alpha in this case? I'm 6 feet tall and 13% body fat with decent muscle and I acted alpha around her. How can I improve? I'm frustrated.