What made River’s exit/goodbye even more depressing is that she was the last living thing that was linked to Amy and Rory. River Song is The Doctor’s last real connection to the Ponds. And now they’re all gone.
Don’t steal that one. Steal this one. The navigation system’s knackered,
but you’ll have much more fun.
I blew into this world on a leaf
I‘m still blowing
I don’t think I’ll ever land