Is your husband in good health? I only ask cos I sometimes can't engage in a conversation someone else has instigated, it's too mentally tiring. However, within minutes I'll sometimes point something out for the reason it's my only opportunity to do so but I don't want to go into a big conversation about it, just want to metion it. It sounds selfish but I know I will get exhausted quickly if an actual conversation happens but I do want to say "isn't that beautiful?" while I have the chance to, I just don't want to discuss why or how. Maybe your husband feels similarly. I also don't want to waste my very low energy level discussing football or any other sport that's caught his attention at any given moment, this seems to be his favourite hobby. Also, because I have very little energy and a lot of pain, I use an attendant type wheelchair so need him to push the chair for me, we can't go separate ways on holiday although I always tell him I don't mind if he goes out for a few hours while I get some rest, he doesn't often take time to do that as he gets lonely. Can't be easy being married to, and the carer of, an unwell person with disabilities bless his heart.