Girl I’m talking to acts lesbian even though we are together [14F] [15M]

I have been talking with this girl for a little while as a little more than a friend, and she has said that she likes me but acts super lesbian with her friends. We would be on call and watch TikTok together, and she would send stuff about how she hates boys and only wants to be with her homegirls. She has also said that she has hooked up with one of her friends, which I couldn’t even tell if she was joking or not, but now that we are together and she still does it, I don’t know what to do. I don’t want to tell her to stop because she sent one to her friends about how if somebody did that, they would just break up, but it feels very wrong and awkward when I see her do this. I’m hoping she will just stop on her own because we are dating now, but deep down I know this won’t happen, so I think I should have a conversation with her about how she identifies and what that means for our relationship. If it turns out she is into girls or is bi, I would want to ask her to stop, but I don’t wanna act controlling because we just started dating, and I know saying this makes me sound weak, but it’s true 🥲