I think my boss' coworker is a narcissist who has it out for me.
Is there a reason why you think he has it out for you?
No, but a lot of people are out to get me these days.
It sounds a little paranoid to think that so many people are out to get you. Try not to be so suspicious of everybody.
I know everyone. I know their intentions. People can't hide stuff from me.
I just think it's unwise to think that everyone else is out to get you in life. If you don't have any proof then they probably don't want to ruin your life.