@jak. Personally I would say she just didn't love his brother as much as it seemed like. Because if she did, she wouldn't cheat on him, twice. Didn't she say she did it because of her career, to get an opportunity to get help?? Even so, that doesn't justify cheating, by far not. In the end, I don't know either why she would cheat. then again, do we ever know how a unfaithful person thinks?