“You’re my person” isn’t tied to official romantic relationship status. Meredith isn’t Cristina’s person because Cristina can’t find someone to date. The women didn’t abandon each other once they found boyfriends. Their importance to each other is of a different tenor. Explaining her relationship with Meredith to her boyfriend, Cristina tells him this: “If I murdered someone, she’s the person I’d call to help me drag the corpse across the living room floor.” She is, not him.
