It makes sense she is A bc shes a mother and she has the mom mentality that Allison was good until the girls showed up nd made her bad. Mrs D probably thought "murdering ali might relinquish the bad Allison nd bring back the good Allison" . However Allison was manipulative and advanced bc of her mom and cece , I think Allison learned to be manipulative and advance from her mom, and Shes a mom ,moms know about their kids but the stuff they know they ignore it or cope with it. Also, Does any one think Mrs D has schizophrenia or dementia? Allison was always manipulative,its just Mrs D dooesnt want to believe it.