Soo i have been holding back

So i have a friend who blames my child for her kids actions. I was recently sick and she watched my daughter. I was in the er for 3 days and another for 24 hrs. She has nit picked the entire time my daughter was there. I was told her kids were acting a certain way cause my daughter. Mind you she went through alot cause I left to go to the er (she is 4 with autism) I called her yesterday to update her on my appt. She told me if I were to go back in the er she was unable to watch my kid cause my kid cause her kids bad behavior. Which is far from the truth. She has blamed my daughter alot of for her kids behavior problems. She told me she won't see me or my child for awhile. I have not spoken to her. Cause I'm over her blaming my Lil for everything. Since comin home my child has bee. Acting out gettin back to a routine. She acts like her kids were the only ones off a routines. Am i overreacting? Mind you this ain't the first time she done this. My child does fine at home with me and and other family members. And does fine with other people's kids. Keep in mind her eldest already has anger issues along with some other thing.