LBJ pushed her around early in his marriage.
Lady Bird Johnson, 1912-2007 - TIME
Once, when LBJ was still the Senate majority leader, Sidey was having a late drink with him in the Johnson ranch house in Texas. Lady Bird and a staff member came down the stairs responding to LBJ's shout. They were both in pajamas and night robes. Johnson stood up, gathered them in his huge arms and began to fondle a breast of each woman. Sidey later said that Lady Bird's restraint — she did nothing, but sweetly — is what calmed him down. After the White House, when confronted with some of these stories, Lady Bird shunted all wrath aside. "Lyndon always did like the ladies."
Then he had a heart attack and things changed. She was a good political wife, who never criticized him publicly. She had class!