No actually I'm still hung up on it.
Zero's "a friend is a person your trust" revelation DIRECTLY followed by the WoL thinking about Zenos.
Zenos, whose feelings towards the WoL were so strong that they not only broke through Meteion's Ultimatium, carried the Warrior on his back, and then as he lay dying STILL had a strong enough sway over the dynamis in at the edge of everything to save the WoL's life, letting himself die at the end of it, their conversation ending with Zenos, through his final act, confessing that the only happiness he found in life was with someone that he didn't know how to love in a way that wasn't violent and selfish with a passion enough to tear the world apart.
"A friend is a person you trust" not to WoL, not ONLY at least, because they had a friendship that was not built on the foundation of a mutual trust, but on the foundation of challenge, and acceptance for the other as the broken, fascinating thing that they are.
My enemy, my friend.
