werepuppy

And I know she'll be the death of me, at least we'll both be numb
And she'll always get the best of me, the worst is yet to come
But at least we'll both be beautiful and stay forever young
This I know, yeah, this I know

The Doctor and the Master. Best friends and enemies and so much more across the many centuries of their lives. It's complicated is an understatement of their lives. Trying to kill each other? That's their texting.

(To explain: I heard this song and realised how well it fitted the Doctor and the Master.)