I read in a book about the fact that for a relationship to survive, each partner needs to be willing to push things to a crisis when they need to. Each person needs to be willing to say "the status quo doesn't work for me" with the implication being that if it doesn't change, they're done. The other person can either ignore them, in which case the relationship ends, they can agree to fix whatever the issue is, or they can offer a compromise. This process forces the relationship to evolve, and to stay alive it MUST evolve. The alternative is to slowly erode through building resentments.
