Leaving friends attracting girls

[Attacker]

Hi guys.
As we all know, it helps a lot to first build social proof and then go talk to friendly sexy girls.
I have 2 questions.
How do you explain to your friends why you left them for a random girl?
How do you explain it to the girl?
I always think she might consider my friends worth less than her, if I leave them for her. Still, she should not be able to feel superior.