Sorry in advance - I know this isn't what you want to hear. But do their comments have any truth to them? I know it really hurts to hear people's honest thoughts about you. But it sounds like you went in there wanting sweet comments and just didn't get them. I would take this as an opportunity to think "is this true? do I do this?" and it's really hard to be introverted and concentrate on yourself but this might be a perfect opportunity to do so. And if you can honestly go through these comments and think "none of this is true at all. I like myself the way I am" then just delete the account. I know that usually when I get mad at a mean comment, its because I'm mad at myself, not the other person. Because if someone says something mean out of the blue that has no grounding at all then it doesn't bother me. Just my opinion, something to think about.