i'm the op of the comment that started this shitshow, and i for one didn't write it out of a feeling of being 'threatened', but more out of concern for you, honestly. if someone has had an actively harmful effect on your life and you've cut them off... why in the world would you risk inviting them back in? it just seems completely irrational. checking up on their blog or whatever is one thing, that's normal, but initiating conversation with them asking how they were, that's just going to look like you're trying to rekindle the friendship.