You already knew this, but...

You already know that you can't understand your partner from reading a book that someone who never met your partner wrote, right? Of course you do. Because as much as some guy might want to tell you that "men are Mars and women are from Venus," the truth is, men and women are all from the same place: their mother's uterus. And the only thing you need to know about these books is this: most women who write relationship advice books hate men. and most men who write relationship advice books are trying to get laid by pretending to understand women. If men and women could understand each other from reading books, a lot of Americans would spend more time reading and less time getting divorced. 

The "insight" you're looking for in these books is all about that fictional man/woman who can patiently communicate and be objective about their shortcomings and differences in the middle of relationship drama. And the real kick in the balls (or punch in the tit, for you ladies)? That man/woman doesn't exist.  You don't fix issues in a relationship by "understanding" the other person. You just learn to deal with the fact that you will never understand. And be ok with that. Sound too simple? Well, is it really any more simple than explaining by some silly metaphor about men and women being from different planets?  Touché.  

You already know all of this. And that's why it matters.

Keep watching, cause I'm going to tell you so much shit that you already know...