还有一个真实，

Hugh Grant 家里放着飘亮极了的女朋友不要，找了个丑极了的黑女。

Marriage is a contract, it says from now on, you are the one. Since one signed the contract, he/she should honor it. He/She can choose to break the contract if he/she no longer want to honor, but he/she should do it openly. Cheating is wrong, just like stealing goods from store is wrong, period.