I want to come out to my best friend, but I'm way too afraid. She's my absolute best friend who thinks I'm a biological girl, she's unknowingly helped me figure out I am female and is a constant help in my life, but her boyfriend acts transphobic and gets extremely jealous, and has tried to get her to stop talking with another MtF cause he sees her as a him. I also wanna come out to her my age, but I don't want to be seen as a kid by her.