RFK kept a diary in 2001 where he recorded cheating on his wife...

In his affidavit, Mary was portrayed as an alcoholic who abused her husband and was a danger to the kids. The document was supposed to be sealed, but it somehow made it to the press. According to Mary's attorney, Kennedy took custody of the kids as a way to force her to agree to a divorce.
Unable to take any more pain or humiliation, on May 16, 2012, Mary Richardson Kennedy hanged herself. A friend commented “Depression and drinking didn’t kill Mary. It was having her kids taken away.”
Robert Kennedy gave a eulogy at her funeral where he claimed that in their last telephone conversation the day before she died, Mary told him “everything was her fault."
Great guy.
