world's greatest couple

I can't stop watching How I Met Your Mother. And I fell in love with episode "world's greatest couple" with Barney and Lily living together. It's like the most epic quest, where you are supposed to un-jerk Barney, and make him a family-man. I know Barney and Lily are more like brother-and-sister, or even like mom-son, but I'd quite like them together. It just feels like Lily is the only one who truly knows him. Gosh, if I don't stop watching this show anytime soon, I'm just going to blurt out quotes from Barney. True story. I might have done it quite a few times now.