The commander is too old for silly stuff like that, and Chris probably would have had more problems if he didn't do it, as she only accepted the food once he took a bite.
But she is in a really awkward situation. If you have to remind yourself that the person you just helped is the enemy, there is clearly something wrong.
But i loved when she jumped out of the window, especially the pose. Jumping upside-down, backwards out of a 10-15 story building, and only while falling starting the transformation. I wonder how she got enough speed to crash through the window while jumping, turning around and upside down and pulling up her knees between where she stood and the window, as the room wasn't that big.
Without using Symphogear, they aren't special, and i doubt she trained as much as Hibiki.
I also agree that there might very well be something up with Tsubasas new international manager, or at least, someone else using this as chance to do who knows what, kidnap her, get some more Noise to rampage in Japan while she is away, who knows.
Assuming he is really interested in her as a "ordinary" singer, she shouldn't have problems finding an audience though, he is not a random guy, but a well known person and head of a big company. If he wants to make her a star outside of Japan, he surely has the means to.
And seeing that half the comment here are about that they like Nana Mizuki singing..the audience is already there..
Loved the concert scene and it is great to see Tsubasa sing like that on stage again. And that speech that she gave afterwards was just so nice and touching to watch, especially with that beautiful bgm.