My mother had a panic attack after laundry mistake and I dont understand why?

So I dont really understand what happened.

My mother was pretty abusive to me during childhood. She was hitting me, neglected me, was emotionally abusive to me and tried to throw me out of the house a few times. Since I moved out she at first was angry but then started acting like a sheep. Everything I say she takes as something thats absolute truth, she never argues with me and she would probably do anything for me. She started therapy, goes non regurarly.

Now since a week or so I've been living with my parents again because I found mold in the apartment I rent and I didnt had anywhere else to go. My mother treats me like a child. She washes my clothes, she buys me socks with teddy bears, she does groceries for me, asks me if I want her to make me breakfast etc.

Today after she did laundry I found she put my faux leather pants in the washing machine without checking. They should be washed at colder temperatures and not ironed. She came to me and asked me what's wrong with them and I was kinda upset and dissapointed and said "you destroyed my pants". She immedietaly started trying to show me she didnt meant to do anything bad. She's always like this so I just said that I'm kinda sad because I had them for so long already. She said she can buy new ones for me but then she went downstairs (they have two floor house) and started screaming in anger and started having panic attack. She went outside and I found her crying and breathing hard. She countinued explaining to me that she wants me to be happy, that she's happy I'm home and that she doesnt want to hurt me. I immedietaly felt like her therapist or her mom and then I felt I did something wrong by saying she destroyed my pants cause I felt like I was abusing her. I managed to calm her down a bit but I literally dont understand this situation at all.

Is it like she cant handle what she's done and tries to have fake imagined reality where she didnt abused me and even a small thing like laundry mistake destroys this for her? Or what?

Also vent: I feel so bad that she abused me and now I'm in the role of her therapist. It's like I can never be a child.