Yes sometimes

No.
I can feel something not quite right - it feels like maybe a choked hostility - but I'll have no idea what it is unless someone repeats something that should have been kept in confidence.
If I discover that someone is jealous or envious, I avoid them.

Sometimes

Yep

I have done but that does not bother me.One time it was obvious because she complained to HR about me wearing mini skirts at work even though there is no dress code against it.The next day I wore short shorts and realising who had complained I sat near her all nice and friendly while telling her how proud I am to have such long shapely legs.She told me her husband agreed with me.Turned out that hubby had been watching me walk from my car into the offices when he dropped her off and told her he thought my legs were the best he had ever seen.

Don't care. They're only Jealous in this world doesn't mean shit

don't know .... don't have anything to be jealous about