Mother in fear of daughter's husband

by Minde Stewart
(East Coast USA)

He cheated on her before they were married for months with her best friend. And she won't speak to her and he's not to blame by anyone. After the wedding he started it up again with the wives best friend, he sent pics of himslef to her friends.

He slept with one other supposed friend and tells her he couldnt get it up, and the worse one is if i say anything to my family she will never speak to me.

She thinks the lunch bought to her with roses at works and gifts are signs of it being ok,I can see threw him they r signs hes gonna or still is and he has her believing.

HOW do i make her see no matter the hurt?