Harry’s mum turned out to be a narcissistic nymphomaniac
The term is “sex bombing”.
That ended for Harry when she locked Harry up with the kids.
Then it is a long slow burn until she devalues and discards.
For sure she is living two lives. The nightmare one Harry sees where he can do no right and the extramarital hook up life. Everytime she leaves the house she’s heading ‘cross town to visit a sick friend.