I too used to teach and was a school principal. I never "loved" children, which sounds weird I guess. I just enjoyed teaching them.
My daughter teaches behavioral special ed which is hell on wheels. Don't get into that.
I found managing a regular ed class (30) just too much. The teaching part was fine but the paperwork and parents drove me nuts.
Absolutely inexcusable for people to gossip in front of kids. In my mental condition I would have tracked the culprit down and had a long "discussion" with her.
Take care of yourself, YOU are what's important here.