Obviously there was a lot of drama with the guys throughout the 60s and 70s. how did the wives cope with all the drugs, alcohol, cheating and egos while all this was happening?

I saw in the "American Band" movie how Marylin was dealing with Brian, but they didn't talk about Annie, Carol, Barbara, Karen, Lynda, Mike love's wives-which I heard he beat one of them. did he beat both of them? I also saw somewhere, I don't remember where, that at a drunken state Denny would beat his wife too, is that true? and if so which one? I know he and Karen didn't get along but were there physical fights? in the movie they had some girl named Deborah, was she a fictional character representing all of his women or was she real too? did Marylin and Diane's relationship change after Brian cheated with her etc.?