I CANNOT be in the wrong, right?

I invited my sister to be in the delivery room with me. I was getting induced and the doctor came into do the foley ballon and asked if I was comfortable with everyone being in the room (mom, sister, SO) I said yes and he began the procedure. While the doctor was knee deep in my puss, inflating a balloon inside of me, I hear giggling and a “shut up!”.

I calm my groaning and moaning look over and my sister is FaceTiming her friend... a male friend.. he’s gay but still. I. Was. Shooketh. To the nth degree. I tell her “you can leave now, get out”. Then she leaves and tells everyone I kicked her out and how upset she was. She came and saw the baby and was still hurt about it, trying to justify her actions. I only meant to kick her out of the room not the whole experience but I’m glad she didn’t come back honestly.