Comment by Atomic Betty on Young wife - Chapter 13

@Atomic Betty Growing up in a modest environment where choosing anything is considered a luxury makes it difficult to develop preferences and determine what is best for you (however, it's highly influenced by your parents/grandparents/or any other 'grownups' that take care of you—more or less—and the values they instill in you). If she would have liked something and knew what she wanted, she would have been considered arrogant, a gold digger, or whatever; if not, she's annoying because she's without personality. Many people who lead humble lives struggle to understand what's beneficial for them from the perspective of those who lead an opposite lifestyle, which can be extremely frustrating. It's challenging for someone to understand a person who has an empty stomach when yours is always full. She likes him; it's obvious, but she knows she lacks many things, that's why it seems like she's inconsistent. It's a fight between mind and heart—consider them as two leaders in a company with opposite goals. When one takes charge, all the employees must go in a different direction. Alternatively, consider it to be mind and heart at each end of a rope, with you in the middle. Both want to win, but only one can be the winner at the end of the game. Until you reach one side, you're dragged left and right, making you dizzy and confused—hence, the inconsistency.

He, on the other side, is the type of person who thinks he knows everything since he lived a life full of privileges. Having money doesn't automatically give you a heart, either. 
I understand what the grandpa is trying to do. Given that she follows her emotions while he follows logic, he hopes to demonstrate that there is more to their version of "normal" in this society. To overcome any obstacle, all you need to do is recognize that you cannot survive without both your mind and your heart and learn to utilize both effectively in different situations, in varying amounts, of course, but never just one.