
Excerpts from a Letter written by her Husband in 1914:
A. You will see to it: (1) That my clothes and linens are kept in order, (2) That I am served three regular meals a day in my room, (3) That my bedroom and study are always kept in good order And that my desk is not touched by anyone other than me.
B. You will renounce all personal relations with me, except when these are required to keep up social appearances. In particular, you will not request: (1) That I sit with you at home. (2) That I go out or travel with you.
C. You will promise explicitly to observe the following points in any contact with me. (1) You will expect no affection from me and you will not reproach me for this. (2) You must answer me at once when I speak to you. (3) You must leave my bedroom or study at once without protesting when I ask you to go.
D. You will promise not to denigrate me in the eyes of the children, either by word or deed.
Her husband eventually had an affair with his cousin, Elsa and demanded a divorce from his wife writing to his cousin "I treat my wife as an employee whom I cannot fire. I have my own bedroom and avoid being alone with her. In this form I can endure the 'living together' quite well." He married Elsa and soon fell in love with the nice of one of his friends. Elsa allowed him to see her twice a week and in return he would keep a low profile. He soon got bored of the niece and moved on.
It's terrible that these abuses had to be accepted by these women because of the pressure of society. If a Mileva led a lifestyle like this she would be remembered as a sinful harlot, it is sad that her husband is remembered for E=mc2 and his letter written to President Roosevelt in 1939 is far more famous than the one I've included in this post.

Einstein's Letter to President Roosevelt
New letters shed light on Einstein’s love life