To keep it short basically talk with a girl hit it off we go out last minute change of plan ends up with me in a crappy bar with her friends including a beta pussboi.I bail myself and her out of there and go to another place i escalate it went good. Before we seperate she asks me out to the party at the same shit place i deny as i dont drink and have no idea who the fk even goes there to party (got my answer she does) instead i arrange that we go out my terms this time. Get a text on the day we were supposed to go where she says we are gonna need to go out earlier because she is going with the pussboi to the party and they are in a relationship now. I basically reply have fun you two and stop all forms of communication. So what i need help understanding is why did she go for the pussboi if he was a orbiter the whole time without having the guts to escalate?