Because I hate you, and nobody would think to look for you there.

I'm in Johann's cabin. Take mine; do what the fuck you want to it, I don't care. But use it to fade away; the way to lose the Admiral's attention is to be less interesting. You blow up a part of the deck, it pisses everyone off, and now everyone gets involved in your fucking redemption.

Fade away into obscurity, you'll disappear into nonexistence.