I totally understand what you are saying. MCI is no doubt challenging on the best relationships. When the relationship is already complicated it makes the struggle that much worse. I have found talking to a psychologist helpful. If you are not doing this, you might want to consider it. I also found journaling helpful & help me clear or organize my thoughts. I also share some of my writing with my therapist & we talk about those things that trouble me. I also decided to take some community classes that meet once a week. Between these things & finding an MCI support group, I notice it’s helping my state of mind. Just some food for thought if those are things you have not yet considered trying.