Because I'm selfish. I'm a coward. I'm the kind of girl who, when she might actually be of use, would run to stay alive and leave those who couldn't follow to suffer and die. This is the girl Gale met in the woods today.
No wonder I won the Games. No decent person ever does. (8.82-83)
"Okay, I figured out what I'm asking," I say. "If it is Peeta and me in the Games, this time we try to keep him alive."
Something flickers across his bloodshot eyes. Pain.
"Like you said, it's going to be bad no matter how you slice it. And whatever Peeta wants, it's his turn to be saved. We both owe him that." My voice takes on a pleading tone. "Besides, the Capitol hates me so much, I'm as good as dead now. He still might have a chance. [...]" (13.27-29)
"The point is that two of us are coming home from the Capitol. One mentor and one victor," says Peeta. "Effie's sending me recordings of all the living victors. We're going to watch their Games and learn everything we can about how they fight. We're going to put on weight and get strong. We're going to start acting like Careers. And one of us is going to be victor again whether you two like it or not!" (13.58)