Soooo she's acting weird

I'm worried because my gf has been acting super weird lately. She won't kiss or hug me. She would only go straight to sex or my dick. She no longer hangs out with me as we once did. She passes more and more time with her girl "friends". Rumour has it they do weird shit together. One of the few times I was with her in her house, a strange video featuring multiple women popped on her phone when she opened her browser, which she promptly closed. When she left to the bathroom, I checked her browsing history and several videos of transexuals appeared!! So it turns out she likes dick but woman at the same time???! What should I do??