Luka tells Carol he'll find her when he gets off (no comment) and leaves her alone with Mr. O, who sighs heavily and, as the younger daughter looks on from his arms, asks, "Do you believe that we have soulmates?" Oh, criminy -- I don't recall seeing Kevin Williamson's name in the credits. Mr. O goes on, "That there's only -- one person we're supposed to find, you know, only one person we can really love?" Carol doesn't answer, just looks to the side, but the wheels have clearly started to turn. Mr. O didn't used to believe that, he says, but he does now, and Carol tries to smile comfortingly while her mind takes the parallel access road and races down it ahead of Mr. O, and Mr. O says that "she was -- the love of my life, and I'll never love anyone again the way I loved her." He nods to himself and turns to go; OD is standing in the doorway, holding her mother's box of things, and she gives Carol a knowing look before following her father.
Cut to a tight close-up of Carol, utterly elsewhere. She seems about to say something, and her lips move, and slowly she gets up from her stool and leaves the trauma room, picking up speed as she passes Chuny, and Chuny tells her she needs more atropine but Carol makes a shushing gesture with her hand and doesn't answer, and Chuny tries to get her attention again but Carol is still accelerating towards the desk and she calls out, "Haleh! Where's Mark?" Haleh, no dummy, asks her if everything's all right, but Carol just repeats, "Where's Mark?" and Haleh makes a "the hell?" face and says, "Exam one," and Carol ducks behind Haleh to grab her coat and purse, and when Mark materializes near the desk Carol tells him that she has to go and he should tell Kerry that she "won't be in tomorrow," and Mark asks, "Twins okay?" and she shrugs into her coat and says she'll drop them off at her mom's and call Mark "from the plane," and Mark says, "Whaaat?" but she doesn't answer him and rounds the corner and asks Malik, "Where's Kovac?" and he tells her, "Curtain three," as he wheels a patient past, and she goes into curtain three and stands in front of him: "Luka, I can't have dinner with you tonight." Luka gives a sort of facial shrug and says, "Okay." She realizes he doesn't get it and says softly, "I'm so sorry," and from that he begins to get an inkling, and he searches her face and says, "For what?" Carol takes a breath, and then she smiles, because at last she can say it out loud and not have to carry it around anymore: "I have to go find out." Luka, although he already knows the answer: "Find out what?" "If he's still in love with me," she murmurs, and Luka drops his head as she goes on, "Because -- I'm still in love with him.