As someone who suffers from a ton of real event OCD and guilt, who has hurt people's feelings, and years ago been called out for it, I have since kept a tight lid on my happiness. The thought seems to be "you don't deserve to be happy, you made others upset. What would it look like if there you were, being happy, joking around, when someone who you've hurt, or who knows the hurtful things you've done sees you being so happy? Wouldn't they think 'wow he must really not feel bad about what he's done, because if he did, he wouldn't be able to be so happy or get over it.'"
It doesn't help that I am trying to do comedy for a living and am basically asking people to come see me as a source of humor and happiness, when I feel like if they knew me, they'd throw rotten fruit at me and feel so betrayed.
So my question which I've been trying to look at non-judgmentally and from an observational perspective is: why should someone who did bad things to others deserve still be happy and feel the right to try to make others happy?