How do I express to my Father that my Mother is scared of him?

So: my mom is very ill. At the rate things are going, she’s going to be bedridden soon. (My guess would be maybe 2 months.). My dad insists on going out to eat morning, noon and night; going to Atlantic City for the weekend, etc. and dragging her around like a goddamn rag doll.

Well, today, she told me she was scared to see him. She’s been holed up in her room all day. He needs to be told to stop toting her along, as if bringing her out and about, that somehow everything’s okay. Not to mention’ she’s going to lose her job of 25 years. Yup, we’ll talk about that later.

So, I’m truly the only one who has the balls to say something. It’s time. He needs to help her and get out of denial mode. It’s something that needs to be done. Now. But, jellies, where do I even begin!