Girlfriend is engrossed with gays?

My girlfriend goes to a different college about 4 hours away and the first people she met were the LGBT Rights group. I was cool with her being an “ally” and making friends. After a semester they are pretty much the only friends she has made. Every weekend she goes to the gay club with them. She actually PERFORMED in a drag show with them too. She has always been open minded and tries doing things outside the box but I am a little bothered from all this. Before this occurrence I was perfectly cool with s but I feel they are consuming my girlfriend’s life and I am losing attraction because that is all she is active in. Is there Help or comments welcome?