Poor Marilyn, schizophrenic mother, no dad, growing up in many foster homes. No idea about her grandparents, though she had a half sister. She was given to the world since her own family could not love her.
While she perfected her image it took a lot of time and effort and fake breasts! She once said that Hollywood is a place they pay you a thousand dollars for a kiss and fifty cents for your soul.
As for Arthur Miller, (her third husband) he was cruel to her when she didn't live up to his ideal. The first was too young and the second beat her up.
I am horrified that any husband would hit his wife for some silly reason like not having his dinner on time. As happens in many many households. Do men not know how tough it is to run a household esp if wives are not even given a budget. This is why women need to work!