Some people cannot understand the subtle differences between bratty flirting and being mean. Your boss is one of those people, but give him time, and I think he'll start to understand. He was a victim of influence from your co-workers whose bitterness and jealousy made your boss think he is a simp. He has a lot to learn about not caring what other people think; you're just the person to show him the way. Become a Patron!