If things change, either internally or interpersonally, and people do change, then I'd rather be able to have an open discussion in those cases as well. I'm into my seventh year with my primary, and I don't foresee things breaking down in a hurry. Still, if being with me was bringing him more suffering than satisfaction, I'd want to know that. It may be that things can be improved within the relationship, although they likely won't without communication. It may also be that things can be improved within the relationship, in which case I'd prefer to know that. I want my partners to be happy, and while there would be an emotional hit to learn that they would be happier without me, I value them being happy more than I value trying to maintain a relationship that is a drag. Like fish, once the relationship is dead I think it's better to get rid of it before it starts to stink. I don't think that a relationship that doesn't make the people in it happy is worth maintaining for the sake of maintaining it.