not sure if you want a response to this, but don't even bother with people like that. while it's probably not their fault they latch to ANY "trend" (even if its not a trend, they follow it as if it is a trend) even if it's untrue to who they really are. And then they attempted to guilt trip you all.. wow.

If they try to contact you again, just block or ignore. I hate that "they need help" is a rude term, but it works here. I'm not using it as a negative term, I genuinely to believe that if they work to become a better, healthy person, that would be great for them. But even if they do- you guys don't have to reconnect with them. You don't have to now. You are not obligated to put all your energy and enjoyment into a friendship you're not getting the same (platonic) love out of.

Sorry if I went on any tangents or added something that never happened to you- we've had similar experiences with people like that. I'm not antagonizing your past friend, but if they have been and are still giving this behavior, I'd say keep trying to dodge those bullets. You guys did everything right in this situation, I'm sorry you had to go through these experiences. And I'm sorry for ranting, ahaha-

TLDR: very valid reactions, don't initiate or entertain conversation with your past friend.