Your mother had anxiety issue. So she was told to go to a therapist to sort out her problems. She would have rapid heart movement and feel very uncomfortable at a very little stress.

He asks her to lay down comfortably on the couch and starts his therapy. Soon he gets her completely under his control.

Once she is gone. He proceeds to play with her assets.

He is very pleased and surprised.

He decides she is too good to let go so he alters her mind permanently and programs her to divorce her husband so he could keep her with him.