Not your fault! If you're exposed to too many sad things it can make you look at sadness or sad things to be normal. It's okay.

Nah, not ya fault at all dude.

No, not at all. Not at all.

Not your fault actually! Its okay if you dont feel sad when it comes to smth bad, that just the way your brain make cooping mechanics. And i hope you feel better ^^

Also death i dont really... care about? I know it sounds bad but like I really can't feel sadness when it comes to my family members' or pets' deaths. I dunno.