Hope marriage doesn't make me stupid!

I have a long list of things to preach myself on marriage and its associated nuances. Before my parents tell me some day, "Next week is your marriage, you better get married now" (sob sob!), I need to start my self-preachings. Let me follow my usual strategy of preaching what I think I will find difficult to practice, so I can blackmail myself when I don't follow later. First on the list is what I like to call as "emotional bias".

A friend once told me:
"Though we haven't met each other, I know I'll not be in his good books. His girlfriend doesn't like me. You will mostly not be in the good books of someone, if you're not in good terms with his girl. Same the other way too".

A few days back, I was hearing from some other friend of mine:
"I think it was just a few months after marriage. I remember when I called her cousin and shouted at him badly for making my wife cry for something. How stupid of me! Later I got to know that it was actually my wife's mistake. Even otherwise, it was stupid. I felt really embarrassed. But her family is so cool. Her cousin just laughed it off later."

I'm able to guess that such feelings shouldn't be very uncommon. I remember, as a child, I used to blindly presume that whoever makes my mom sad is bad, and whoever doesn't is good. Forget about those who make my mom cry, they will immediately become my villains. They call it the "confirmation bias", a bias that favours one's own preconceptions. I thought people will grow beyond such biases over time. But if you ask my strategy professor, he'll say it only worsens as people grow old. Why ask my strategy prof? Ask me, I know I've only grown worse with all those biases. Forget the confirmation bias, shouldn't we at least grow beyond such "emotional bias"?

So what if my wife cries because she fought with her cousin? Of course, I will give her the moral support and if I can I will try to pacify both of them and help them make peace with each other. But I don't want to make the foolish mistake of falling into the trap of this emotional bias. I'm sure I'll make her cry more number of times than she ever cried all her childhood. Probably her cousin should call me everyday and scold me.

Hope marriage doesn't make me stupid!