<human>: Provide a brief overview of the text.

I lived with both my parents until I was 8 years old, then with my maternal grandmother (for 2 years), then with my mom and stepdad (3 years), then they got arrested for drugs and I went to live in foster care with friends' (two homes, two different friends) family from age 13 to 19. My foster care experience was better than most. (And my bio-dad and stepdad both have passed away from drug-associated health problems). 

My mom and I began reconciling about 15 years ago when she got clean/sober and it's been a bumpy ride but we have a cordial, if strained relationship now. I'd like to maintain having holidays with her and her health is failing, so I visit most weeks on Sundays for a few hours. These Sunday visits are often tense, with me waiting for her to blow up about something, and she sends emotional daggers towards me. 

The biggest one being: to this day, my mom insists I ran away from home (and often says it in mixed company or in public arguments, very embarrassing and loud), or in her words, "left her" when I was 13. I never quite understood why she thought that. She says that I abandoned her and she guilts me about what 13-year-old me did. Yesterday, I heard even more background-- she thinks that I ran away to live with my friend and completely blocked out her arrest and that social services took me away-- she even pre-dates when I ran away to be earlier than the "arrest" she barely remembers. I've never run away from home. 

I don't know how to react when she pulls these yelly tantrums. I want to just walk out the door when it happens because I cringe and cry and get all red in the face and angry. And If I tell her she's wrong and she "needs a new narrative," she says that I'm lying about what happened. But I was the sober one! 

What are some alternatives to walking away or what is a new way I can react/act towards her that maybe I haven't considered?
<bot>: I had a drug addict mother who's clean now, after years of therapy, how do I deal with remaining unresolved issues without losing my head?