He wasn't horrible or aggressive - I suggest you are too sensitive.
He was explaining the use and spelling of the three: their, they're, and there, which you appear to use indiscriminately, and that was more helpful than aggressive. Can't you take constructive criticism?
Edit: And everybody knows nuns don't bathe very often. They run around in habits in order to hide the dirt and camouflage the smell. After a month or so, they derobe and shower in the dark. I thought everybody knew this.