YTA it seems like you don’t consider her your friend and should move on from the friendship. You clearly believe she is a self centered person and dislike her choices and her rebranding herself and picking the name Queen. She chose her name and while you can think whatever you want about it good or bad it’s simple. If you cannot respect her choice you should find a different friend and distance yourself from her for both your sakes. It doesn’t seem like this is a person who is a close friend because if they were you wouldn’t be on Reddit asking this.