Board Thread:General Discussion/@comment-1758442-20130905070149

So there's a set picture showing that Tinker Bell has some kind of past relationship with Regina. It appears to be a friendly relationship. Juding by Regina's dress, the scene takes place during her teenage years, possibly during the early days of her marriage to Leopold.

My theory is that Tink promised to rescue Regina from her marriage. However, something separated them which resulted in Tink stuck in Neverland while Regina thinks she's been betrayed and abandoned by her only friend. 