Tl;dr: My mother might be adding considerable amounts of stress on me, but is in denial. She’s also an amazing woman who is incredibly supportive of me and is struggling with PTSD/Depression. 

I discovered something very disturbing to me just now. I recently moved back in with family after a breakdown and have been doing better than I ever have in my life. My mother is my best friend and we’ve suffered through a lot of our trauma together. We’re the only ones that truly understand each other’s situation. My therapist has mentioned our codependent nature but I’ve always brushed it off until today. 
Yesterday we got into an argument (like we often do) and I decided to record most of it. I was shocked. I’d always thought that I had been the aggressive one. I thought that I misinterpreted situations and that it was only my issue to deal with. During that seven minute video I heard her yell at me nonstop while I cried. This was because I asked her to not speak to me aggressively in the car. She was babbling. I just wanted it to stop. I was so frustrated. I haven’t had an episode in over a month. I’m afraid my mother might be keeping me from getting better but I really have no choice but to live here. I’m scared because I know I’m the only one that understands what she’s going through as well. I want to be here with her but I feel like she needs more help than I do at this point. 