UST - unresolved sexual tension - was a huge part of the success of The X-Files, at least for a certain segment of the fans. Those who tuned in for the "will they or won't they" relationship between Mulder and Scully know all about UST, because it's what kept them watching week after week. Once Mulder and Scully did get together, however, those fans sort of dropped off, because the driving question (for them) had been answered. Well, it looks like the show has plans to rekindle that sexual tension, because at the start of the revival, Mulder and Scully are no longer together as a couple. Will they get back together by the end of six episodes? That's the question Fox and production company 1013 are no doubt hoping fans will tune in for.