This is really nice. I usually get a bit wince-y at stories featuring companions moping about being in love with the Doctor, and especially about companions spending their time pining for him, but you've really made me feel it here, in a poignant way that works for me instead of annoying me, especially when it leads to them filling that gap with each other in the end. A great expansion of the original.

Also, this line:

Rose even thinks she can smell the Doctor here, a faint whiff of time vortex with a hint of banana.

...is possibly the best description ever. :)