4. Why do you have to be so--human.
One of the romantic themes in classical science fiction is the capability of humans to perform miracles, to rise above the circumstances and triumph over them. Rory the robo-Roman is a perfect example of this kind of romance. Firstly, how is Rory there at all? Because Amy found a way to remember him. After he had been wiped out of existence entirely, Amy found a way to remember him. And she remembered him so strongly that, when the bad guy alliance extracted her memories to build a scenario, they accidentally got Rory. The Doctor called it a miracle. And when a robot Rory was created, because of the strength of Amys mind and memories, he was himself. He held onto his heart and his soul, and he stayed with Amy for 2000 years. When he insisted on staying, the Doctor asked him why he had to be sohuman? And Rory answered Because right now, Im not. Humanity isnt something to just take for granted: it has to be proven. And one of the ways to prove humanity is love. Puts a whole different spin on the love saves the day trope were getting so much lately, doesnt it?