“it’s like loving the stars themselves. You don’t expect a sunset to admire you back.”
SPOILERS :: Do not watch this scene unless you have already seen it before/watched all the way through this episode in its series :: SPOILERS.
Doctor Who is very worth watching in entirety.
From the Doctor Who Christmas Special in season 10: The Husbands of River Song. The immediately preceding minutes from that scene are also among the best of television ever.