I had therapy yesterday and my therapist suggested my wife may have Borderline Personality Disorder.
Let me caution you here. MLC can mimic bipolar or BPD or other mental illnesses.
To answer the question of how it helps you asked above the better question is how did you end up marrying a person like this? What can you change about yourself to not be in a relationship like this again?
Only example I can use is myself. My mother was bipolar and so to avoid repeating that I married someone that was depressed. Not a very good 180.....for me.