What exactly makes Jori so popular?

It's interesting how the whole Jori pairing seems to be more popular than any other pairing on the show. I don't know if that's suppose to be surprising or what. But what are the reasons for this? Is it because they represent the typical "love-hate" type of relationship that many people love so much? (e.g. Freddie/Sam, Ron/Hermione, Darcy/Elizabeth, Buffy/Spike, etc.); or is it because the idea of a same-sex couple (especially with two VERY attractive young ladies) is intriguing? Or... some other reason(s)? To be honest even I find the idea of them as a couple almost a turn on. But I'm not quite sure why. Can't really put my finger on it. Anyone else have any opinions about this?