Bit of a late response, but overall, I liked the first half. It was solid, baring Marge's aggressive behavior in mind. She's been angry before, but I can't for the life of me picture her as a Bridezilla.
Then the second half had to happen which felt so jarring, out of place, and petty even for Selma and Patty. And of course, Sideshow Bob's appearance wasn't even worth mentioning.
Does anyone here even look forward to his appearances anymore?
EDIT: Oh, it's Patty and Selma. I know they dislike Homer, but this is a bit much. I doubt they would really want to hurt Marge like that. Then again, this is season 20, where Cookie Kwan is a bridesmaid for some reason.