I don't think she's manipulating anything. I think she is sharing how these come across to her. It's pretty standard. Have you read about the pursuit and distance dynamic?
She is perfectly free to spend quality time with her son. You don't need to invite her.
Rose, is the "pursuit and distance dynamic" part of detaching or something different?
Married 9, Together 13, Divorce in Progress M: 44, W: 44, S: 7 Bomb Dropped (EA, D): 7/19/17