It's important for you to be aware of the way your feelings and thoughts are affecting your work and health - as you've mentioned how things seem to be going along badly. But - your life is not ruined (so try to change that view). Are there some ways for you and this other person to create some balance, so that each one of you has their desired space along with understanding of what is desired or needed? Maybe it's a change in communication? What would you think might be changed?