I don't care what my NM thinks but because she is involved in mine and DD's life (she spends weekends with DD)
It's more her becoming more involved in our daily lives re living closer and getting her feet under the table emotionally. Now I know this sounds harsh but, she won't live forever. She's nearing 60 and has had some health problems. While she's still around I've decided to dance with the devil in the pale moonlight and take her help with childcare, the house and just be happy and contented when she does pop her clogs
Lady, watch the fuck out for her stealing your daughter.
She isn't even 60 and unless those health problems involve something terminal, she could live another 25 years - which is more than long enough to steal your daughter.
You know her, we don't, but given how she thinks you're pretty well worthless, you're playing a dangerously risky game giving her access to your daughter. Feelings of hate like yours don't come from nowhere. She's earned them. She doesn't seem safe.
Frankly I also think you're using her and that is not a good thing.