Elena, 11th Doctor, Crossover, I have to forget

Yay ok, so i already did a Katherine, Doctor vid but now i wanted to try Elena as a companion. You ll see in the vid how they met, when Elena saw the TARDIS and the adventures they got into. You should know i come up with the story at the moment im vidding so this ending developed itself, it s kindda sad but i like it :). Story: The Doctor met Elena, as time goes by he invites her to travel with him. They have many adventures and face a lot of enemies but they always got through, that is until the da