My brother-in-law walked out on DH's sister today. Been having an affair, is in love with someone else, packed his bags and left. She was in shock, no indication, no known troubles as far as she was aware. Everytime we saw them, they were very happy. He totally did not seem like this type at all. As far as I knew, he loved her and was a great hubby. That's what she thought too. Jeez!