I find it so stunningly beautiful and poetic that when the Doctor was dying, Clara was willing to shatter herself into a million pieces to save him over and over again. When she died, he was willing to shatter himself against a wall over and over again for millions of years for a chance to save her.
Can you even quantify that with a word as simple as love? It's complete and utter devotion. It's romantic and tragic, and yes, it's definitely love - but it's so much deeper than that. They were so much deeper than that. Their bond transcends the laws of time and space. They will always find their way back to one another.

















