Detergent commercial： “Detergent commercial” is a metaphor for a fake happy marriage. One that looks perfect from the outside, but on the inside it is all props and acting and nothing ever works as well as they claim in the commercial.
我非常理解Rex对于这种“The least we can do is try to keep up appearances.”感到发自内心的不耻和压抑。这种貌合神离、藕断丝连的婚姻关系长时间勉强维系下来会让男人竭斯底里，女人痛哭流涕。
Here I would like to quote from Susan in episode one, she puts it:
Sometimes people pretend to be one way on the outside, when they’re totally different on the inside.
In the realistic world, there’re many couples lost their faith in marriage, the major motives which drive them to keep up the appearance is on one hand, their reputation, dignity and proud or in the name of their kids. On the other hand, lack of confidence to start from scratch when it comes to seeking for a better half.