Okay can someone confirm for me that Britain only has like 10 actors/actresses and they just bread them together because that's what I've been told by tumblr
There were going to, actually. However, at the time, David Tennant was busy with Broadchurch, and I believe Billie Piper had Secret Diary of a Call Girl, so there wasn't any time.
(I know they didn't end up together, but that's not the point.)