DH is getting forgetful and somewhat cross when he cannot log into certain websites or bank accounts because he can't remember the passwords etc. Usually calls for me to help him. So I do but I run out of patience sometimes and it ends in a niggly row. Now my problem. We have a Sky box and watch a lot of TV. He now wants to order Sky Q and have a mini box in the bedroom. I know that a new screen interface and remote will throw him and I will get involved in making the stuff work. Which I don't want to do. He called me selfish and controlling and says he will order it anyway. Am I being unreasonable not to cave in? We have been married many many years.