Eccleston's return definitively answers the long-debated question of the romantic involvement between Nine and Rose Tyler in Doctor Who. In a recent audio adventure, it's revealed that the Ninth Doctor is aromantic, settling the debate about his dynamic with Rose. Nine's platonic relationship with Rose enhances the show's formula, offering depth and paving the way for unique Doctor/companion dynamics.

Christopher Eccleston has recently reprised his role as the Ninth Doctor once again, and his return to Doctor Who definitively answers whether Nine and Billie Piper's Rose Tyler were romantically involved. It's never openly confirmed or denied in the show, but large portions of the Doctor Who fandom have long believed Nine and Rose to be an item. Interestingly, Eccleston's comeback settles this very debate.

Eccleston had one of the shortest reigns of all the actors to play the Doctor, portraying the Time Lord for just a single, 13-episode run.