My DH is 80 years old. We've been married over fifty years. More and more, he can get very nasty towards me. He can go on and on about different topics and if I finally try to say something, he'll say I am butting in and not letting him speak. This is often after he has gone on for fifteen minutes or longer non-stop. If I point out how he has spoken to me, he says I'm starting a fight. Does anyone else have to cope with something like this?