Why is it?

Why is it that when you’re upset or angry with someone, they suddenly take that as your true colors showing? Why is it that when you’renupset or angry with someone that they suddenly see the ‘real you’? As if a person is only defined by how they are when at a low point? As if a person is defined by how they act when you upset them/hurt them? But god forbid that rule counting when it’s the other way around, because then it’s just them ‘expressing their emotions’ or ‘explaining why they’re upset’ and yada yada. You don’t see me going around basing my entire idea of who you are off of how you were when you were upset or angry, maybe even sad. Wtf if wrong with you..