About those messages your friend sent. You can handle it in different ways. Either you say something like "I undestand if you don't believe this, but the messages you got from me was actually my friend X trying to be funny". Two important things here are the name of your friend and the " I understand if you don't believe this".

Another way to handle it is to just own it. When you meet her, just keep the frame that you love her and all that. But make sure to make it sound like you don't really mean it, as if it's all a joke, because no one can love somebody that early. After a while you can release the pressure by admitting "no, it was just a joke, but I do like you though".

The solution to fix "burned sets" in general is to take a step back, give it some time (weeks or months), and change your whole attitude to the girl to the better (fix your mistakes). However, human emotions can be quite complex. There is a girl (for instance) that I feel some sort of attraction towards, but otherwise have mixed feelings to. Things went a bit wrong in the beginning, and I don't think there is anything that will ever fix that. I tell you this because that may happen to you too - the girl may not like you whatever you do. Whatever you do, don't chase her. Maybe look for other girls too.

Really appreciate the message. I gave up on this girl because she is a waste of time. I don't think I should be so attracted to her that I go out of my way for 'her'