When you don't understand, be curious
If ever you find someone's actions or reactions baffling, that's a sign to be curious.
The easy thing to do is to judge. But that's empty calories — satisfying on the surface, but not nourishing in the slightest.
The harder thing to do is to consider how the way someone acts could make sense, given their circumstances/life experiences etc. Hard, especially when it seems like the other person doesn't deserve the empathy. But that's also where the growth lies.