A friend of mine's wife tried to change him, when she succeeded she left him. Her reason was that he changed.
I've theorized for years that women divorce men for the same reasons they married them. It's just the same character trait turned around:
"Why did you marry him?"
"He had money."
"Then why did you divorce him?"
"He never spent any money on me."
"Why did you marry him?"
"Because he was an ambitious hard-worker."
"So why did you divorce him?"
"I never got any time with him. He was always at work."
"Why did you marry him?"
"He was so tough and didn't take crap from anybody."
"So why did you divorce him?"
"He beat the crap out of me."
I'm sure you can add more examples.