This is an easy one so I'll do it first.
Although I don't doubt that Grumble was enjoying the drama, he did not cross the line into harassment.
We both know what you're doing. Don't pour fuel on the fire when someone's getting ganged up on.
You made this a much bigger deal than it had to be. If the trolls weren't already having a field day, they definitely are now.
Marking this concluded because both of you could've handled this better.