The minty foam cools the inside of Yousa's cheeks and burns the tip of her tongue. She's brought back to the present as Cord enters the triage room again. He sits on the metal chair and waits for her to finish, unnervingly quiet.
That's the thing about him—he barely speaks to anyone (who isn't on Crusade Squad) yet knows so much about every person on the ship. Yousa had originally gone to him for help with her dilemma because she hadn't known if her feelings were normal or not. He assured her they were and immediately started research on it, as he was always want to do when faced with a new medical mystery.
As Yousa rinses out her mouth, she imagines what life would be like if she and Cord were tua'ir, bonded-brothers. She entertains the idea that they would be close, not because she always tells him her secrets, but because they are close as brothers, with the deep bond that is necessary to hold them together.
She doesn't have a tua'ir. Having a tua