>>1 I'll start of with this...
Never. Ever. Lie to a girl about your feelings about her. That's a really bad idea, and should never be attempted.
Back on topic, you should talk to her about how you felt about her, and things of the such. It would be best to do this in person, as it would be more.. Say, genuine. Ask for her forgiveness about everything you've put her through. Tell her everything you felt about her, don't stop until she gets it, and then just keep going. She will decide on what happens next.
Good luck!