ETA: For those of you that said dont argue while she is in the room. She is always where we are unless its in the bathroom or our bedroom. We shouldnt have to shut up while she is where we are at. She needs to butt out no matter what. Its not about her at all what we argue/talk about. It would be different if it was about her. No matter if its a child instects to protect their parent she still dont know what we are arguing about. She is 19 so she needs to get her own life and leave my relationship with her dad alone.