Haha! No way. Bless your heart is almost ak endearment now in much of the south. It’s such a deep rooted term, that for many its use has changed. Changing language is one my nerd loves.
Bless your heart is used less & less. The origin of using to be polite while being a bitch is great if you ask me. Shit- everyone knows you’re being a bitch now if you say it without irony now and that means it has lost some of it’s bite.
I love a good insult that isn’t just an F off. Rich use of language to insult people is an art.
@Quasimodo is excellent as such skills.