I remembered I saw similar things in “Hawaii five-O”.
The grandson ask the grandpa: do you afraid of grandma?
The grandfather said: I do afraid. I’m afraid that I disappoint her.
And I realize that does happen in the real life.
One of my manager shared his marriage
He says his wife is such a good person, good teacher,take care of him well and make him better. and he told us that his wife is the only one reason make him wanna do better in his live.
When you really love someone, you do afraid, but it’s because you afraid that you aren’t great enough or you’re gonna disappoint him/her.
So you start thinking, to make yourself much better.
我記得我在Hawaii Five-O 看過類似的情節。