Once Upon a Fangirl...: What Happened to Frederick

This episode continues the affair plot involving David and Mary Margaret, with it finally being exposed to everyone including Kathryn. I'm just going to say it, but David is such an ass in the episode! He lies to both women, lying about telling Kathryn about the affair to Mary Margaret and deciding not to tell Kathryn the truth! I hated that Mary Margaret got all the crap afterwards, David is more in the wrong than her because he cheated on his wife! I felt horrible for Kathryn, and I could understand why she'd be angry, and she even realizes they deserve each other for the wrong reasons. At least Mary Margaret knew their affair was ruining other people's lives and dumped him for lying! I liked that Kathryn decided to leave & make a fresh start, but my only question is why was Jim (Frederick's counterpart) driving to the town line? Seriously, was he planning a road trip & happened to stumble across Kathryn's car & found her missing? The Enchanted Forest scenes were good, I liked that Abigail didn't want to marry James, but is it me or was it a way to end the engagement plot & focus on James finding Snow? I will say the introduction of the Siren was interesting & seeing what they do, which is seduce men & kill them. I surprisingly enjoyed this more than I thought, but it's not one of my favourites, and there's a worse episode which I'm dreading to review! Find out next time, which will hopefully be in the next hour if I can get through rewatching it without feeling like vomiting...