Thalia
When Cassie stepped out of the TARDIS and noticed where we were, I thought I saw a flash of panic in her eyes. I wondered again if there was another reason she didn't want Niji back. Cassie was one of the most confusing people I had ever met, which I guess wasn't saying much, since I hadn't met many people, but that didn't make her any less hard to understand.
I decided to ignore it for the moment. I had other problems to deal with. I needed someone to talk to about the whole Niji thing—somehow I just knew explaining it all to someone would help, and I didn't want to deal with it all alone. I thought about the other day, when I had asked Yume if I could talk to my mom. I wondered if I still could. If there was any time I needed my mother, it was now.
Then it hit me. I barely knew her, but I needed somebody to talk to.
"Hey, Cassie?" I said. "Can I talk to you for a minute?"
"When you run with the Doctor, it feels like it'll never end. But however hard you try, you can't run forever. Everybody knows that everybody dies, and nobody knows it like the Doctor. But I do think that all the skies of all the worlds might just turn dark if he ever, for one moment, accepts it."
-River Song
"You know when sometimes you meet someone so beautiful and then you actually talk to them and five minutes later they're as dull as a brick? Then there's other people, when you meet them you think, 'Not bad. They're okay.' And then you get to know them and... and their face just sort of becomes them. Like their personality's written all over it. And they just turn into something so beautiful."
-Amelia Pond