Woop! It's on time! Look at me, actually posting an answer on the day I'm supposed to!
Question List Day 27: A pairing that you loved and ended up hating.
Dawson/Joey (DAWSON'S CREEK)
This was a lot easier to decide on than yesterday's question. From the very first episode of Dawson's Creek, I adored the Dawson/Joey pairing. I guess this might have been because they were so smart and culturally literate in their verbal banter, or it might have been because at the time I'd never even been kissed by a boy and I identified with Joey's girl-next-door-ness, and wanted her to win out over the more sexually confident Jen. Or it might just have been that I thought Dawson and Joey were both pretty hot. Even watching the first couple of seasons back now, I still love their relationship, and the last episode of season 1 is still one of my favourite episodes. BUT THEN! Then we had season 3, which brought us a whiner, more irritating Dawson, a distinctly hotter Pacey, and a the-chemistry-is-so-obvious-it-hurts flirtation between Joey and Pacey. From the first episode of season 3, my allegiances switched whole-heartedly to Pacey/Joey in a way I don't think has happened on any other show. I LOVED them, and after that, I just found Dawson to be the annoying, narcissistic ex who kept getting in the way. Sorry dude.
Runners Up: House/Cameron (HOUSE)
This could have been beautiful, but in the end it just became unpleasant.