Lexie's in the nursery and when she sees Sean outside, she puts the baby down and goes out to see him. He explains that his wife is doing really badly and that now her other lung is leaking, but that they can't operate because of the strain on her heart so they're going to wait through the night and reassess. Lexie tells him sincerely that she's sorry, and he then drops the bomb, that he needs to know who to call in case she dies, saying he can't raise the baby on his own. He adds that she's a good baby who deserves a family, but he's distant and dismissive at the same time, and despite Lexie's protests that he is the baby's father, he says he doesn't feel like it. When he looks at her, she doesn't look like his: "She's just a baby." Lexie is horrified. Okay, I had to fill out a questionnaire before I adopted my two cats saying what I would do if my mythical boyfriend and I split up. If I had to answer that about kitties, don't you think they would have had to figure that out, and more, when they adopted an actual baby? They're not like the Gap, you can't just mail order and return it to the store if it doesn't fit. But also, despite my snarking, it's painful, since clearly he's just at a complete loss and can't really function.
That night at the Trailer O'Loooove, Meredith and Derek catch up on each other's days while lounging au naturel. She tells him, "I stayed late at work because my house is a brothel. What did you do?" It's a little judgmental for someone who consoled herself after a breakup with a nameless man parade through the same house. There's nothing wrong with that, but therefore she might want to rethink her zero-tolerance stance on her roommates having sex, no matter how inappropriate the partners. Derek groans, remembering that he was supposed to have dinner and a movie...which you hear the Chief yell out happily as he walks right in to see two of his employees naked. Meredith shrieks and dives under the covers while the Chief apologizes and bumbles out.
Izzie and George, meanwhile, are trying yet again to have hot sex. This time Izzie has a hat box on the table in front of them, and calls it their "Box of Fun." She tries to sound breezy when she says they've put too much pressure on themselves and they need to just have fun. George seems less than sure, but finally opens the box and pulls out a bottle of scotch. She tells him it's actually a box of fun and booze, since that wouldn't hurt their chances of success either. I wonder why they haven't tried this yet, since it seems to have been the magic ingredient the first time. She tells him they have the house to themselves and they'll just play, then after he takes a gulp she drains a good portion of the bottle at once. I'm just thankful that this time we didn't have to see it go to any unclothed portion of the night.