We have my boyfriend’s 9 year old daughter staying with us for three weeks. She and I have a very good relationship overall but sometimes it drives me crazy how much he lets  her dictate how everything goes. I am dealing with a very stressful situation with my job and asked him if I could have a few minutes to talk to him in private about it. About 10 minutes into our discussion she threw a fit which instantly ended the conversation. This is after she had interrupted already on two separate occasions wanting him to finish up  and go back in the living room.