Back in the mid '90s, my Mom did something similar to me. She said to me in an angry tone "I KNOW you do bad things!" I was surprised because it came out of nowhere. I said to her calmly "Can you tell me specifically what these bad things are?"
In a flustered tone she said "No. But I know you do them."
I thought it was coming from her illness but when I read stories like yours, ldrnomo, I know it comes from the cult. Mind control is a destructive thing. Our relationship was never the same after she 'dedicated' herself to the cult. She is gone now and it saddens me how much our family has suffered.