Then you can decide what you want to do. If you leave, however, it isn't to 'get back' at the other person somehow. It really has nothing to do with them at all. It is simply a decision you made that is best for you.
I think an important thing to remember is that, at least superficially, sometimes it is the less differentiated person who chooses to leave, usually in a fit of avoidant fusion. I think the more differentiated partner is always the one who is simply calmly stating their preferences and maintaining their boundaries. I feel like I was doing a good job of stating my preferences at the time my marriage ended but not so hot a job of maintaining my boundaries and that is why I still had fusion to play out afterwards.
"Tell me, what is it you plan to do with your one wild and precious life?" - Mary Oliver
