Why the Doctor didn't come back for Amy for 12 years - the whole course of history would change if he had been on time! HIS personal destiny would have changed if he had been on time! If Mels were to succeed in killing him at her younger age, then Rory an
The single biggest thing I feel needs resolved in doctor who right there. Donna deserves her perfect man! Idk but they both deserve each other and his expression as he tried and failed to call out to her heart wrenching!