Imagine what it's like to not even be able to trust yourself; to think you're fighting for one side when you've already been "turned into a weapon" by another. That's the situation Peeta's been placed in. It's hard for him to even know who he is any more, and it's terrible to realize that he's endangered other people on the rebels' side – he's no longer just a person but also a walking weapon.

No matter what, Katniss and Peeta are a team. They started out as unlikely allies and yet their relationship has evolved into a complex love/friendship arrangement based on keeping each other alive. Despite all the odds and everything working against them, they can't let go of that.

Throughout all the terrible things that Katniss and Peeta have endured, they've worked to protect each other. They've continually put their own lives at risk to save one another. Even now that Peeta's been hijacked it's no different. They've got too great a history together and been through too much together to desert each other now.

Katniss can't define her feelings for Peeta, or rationally explain why she cannot "let him go." She just knows she can't. But the reasoning for why she can't is escaping her. We'd like to think it's because of her love for and long-standing friendship with Peeta, but here it also sounds it may be because he contributes to her plan for revenge.

In times of war, people no longer reserve admiration for beauty, intelligence, or bravery. They look up to those who possess the skills to ensure basic survival. Messalla can find a stash of food – at this moment in the book, nothing's more important than that. Without food, they can't go on.

Admiration for Katniss is being used to further the rebels' cause. Katniss is being used like the Mockingjay, which she symbolizes for the rebels. Here Coin is speaking through her to support the rebellion. The greater Katniss's achievements, the more powerful she is as a symbol of martyrdom for the rebel cause.