Keith and Alex were enemies because she worked for Zarkon but on the last Nave he went to take down she was there but she let him go and dealt with the rest of her team alone and now that he went along with his team Shiro, Lance, Hunk, Pidge and allura As they went on a central nave he discovered that Zarkon had "got rid" of her but she was in a freezing capsule so he went alone on zarkon's main nave and searched the freezing capsule room until he opened one of the last ones and when the door opened she fell on top of him but he didn't fall to the ground, she was unconscious and wearing white clothes and the mark on her wrist that showed that she served zarkon was no longer shining