Curse? Or Blessing in disguise?

A chance encounter leads to regular weekends of fun. It started simple enough, but things get complicated and unbelievable. Who is this mysterious women? Was it really fate that brought them together? And will Carlton forgive the deceit and accept the truth? (Sorry for the bad summary, but this story is gonna be weird!) Lassie/OFC, Shassie, fairytale/supernatural elements