“It was like falling in love and knowing a year later it was going to end. It was emotional. But it meant that you kind of lived in this heightened reality, whereby everything meant so much more than it would if you knew you had five more years of it. Do you know what I mean?” allegoricalrose: -Billie Piper, Chicago TARDIS, 29 Nov 2014, on the second series of DW (source)