@AppleLime, it's true that you will only get more heartache and pain if you continue communication with this girl/girls. I would try and exit the conversation, and tell her it was nice catching up. That way you can end the communication. And if she contacts you after saying that, you can ignore it. This is what I would do to protect myself. I know you may not follow the advice, but protecting yourself from harm is important here and this is one way to do that.