Just started this thread as it seems an interesting question popped up on a different thread and was risking derailing the existing thread for the OP.
It might be the case that when my DH is about 85, I probably won't find him as sexually attractive as, say, Tom Hardy is now. Assuming I'll still be a raging 80 something nympo ... will it be ok for me to dump DH then so I can shag someone else?