My lesbian girl best friend is not lesbian anymore...

So i have a girl friend i knew her since age 9 ever since i met her she was just dating girls and generally into girls but recently things changed now she doesn't want me to talk to other girls or talk about my crush's or taking something from girl and she is also sending me a lot of reels about "how beautiful my guy best friend is" am not even that good am 172cm 15 year old with average looks idk what to do i think she might be into me but i dont want to break the friend ship me and her have