"Stay with me!" "Always" . Cry moment here! He thinks that she is a mutt. She thinks that she is deadly. He doesn't remember a lot of good things about her. The Capitol took all of those away. But he remembers that. He still remembers that night on the train with her.
Even Peeta, with his broken mind, stood there, looking normal, long enough to take a picture. Katniss couldn't do it without being angry, that's how deep in depression she is.
They did the tube scene, and this scene on different days. But she still looks like she just watched Cinna beaten bloody. She has all those cameras in her faces. When they did the tube scene, all she had to act for was 4 walls of green. This is just Jlaw being a great Katniss.
I honestly think that this describes what the Capital does perfectly. They try to unite everyone with "Today, Tomorrow, and Forever" yet in order to keep peace they must kill children in order to settle differences. And this is what Panem would have been if it hadn't been for the rebellion