Board Thread:Character Discussion/@comment-3563804-20141028001633/@comment-26179634-20141028063527

It finally probably got through Sidney's head that he and Regina were never gonna be an item. I'm not surprised that Sidney switched sides though. I don't think he switched sides because he got trapped in the mirror again, I think his true reason was out of jealousy of Robin. Regina trapped him in the mirror to help her stay in the good graces of another man, and that was probably the last straw for him.