A friend's hubby is considering leaving her and i don't know what to tell her?

Were military and they have had a big blow out won't go into to many detail cause i don't think i should tell her business but it was something she said to him and he hasn't spoken to her since last wednesday when it happened and when their son who is 3 ask for food or drink he tells the child no go ask mom and their daughter who is 3 months cries he just shoves a bink in her mouth and waits for mom to do it.(not breast feeding) He is being a total a** i mean you can be mad at her but don't treat you kids like that. She has apologized like 3 times. He hasn't even had the balls to be a man and say to her i am leaving i am not happy nothing he won't eat the food she is cooking nothing. The only reason she knows is because of the counceling they are in. I have told her to keep a journal of his treatment of the kids and her and how it went down and that she has apologized and is trying to make it better and that he isn't even trying. She dosen't work and has no idea what she will do. She left him once when she was around 7 months pregnant with their first child after finding out he had planned to leave her high and dry to go back to his ex-girlfriend he wasn't there when the child was born or anything. So i am trying to give her advice but my hubby and i are happily married and i don't want it getting in our marriage since were friends with them and i do not know what to tell her????