Dear people, i have a little problem and i hope that someone can help me

i have used the game on this girl and it basically worked. But this is one crazy girl.

I kiss closed her, but when i saw her 3 weeks later she introduced me to one of her friends and whispered something in her ear and laughed. She then did the sssssssst gesture, you know with one of her finger on her lips. She basically said dont tell anybody but without saying it. I am 100 percent sure that she told her girlfriend that she kissed with me. Her girlfriend was looking at me like omfg.

i totally went crazy, this is the only girl that made me feel insecure about myself you know so i dont have an answer

what can i do? how do i have to react when i see this girl again?

A friend of my is her ex boyfriend and told me that she liked men who were loud and dominant, what do i have to do?