Derek arrives at work all bright-eyed and bushy-tailed and pulls Meredith into an office to cover her with "my mother likes you and so now I can really like you too" kisses. He realizes she's not as perky as he is but she brushes it off, saying it's just that she's been working all night. He asks how Eric is doing but Meredith neglects to give him any pertinent info, so Derek just happily tells Mere that she got the Mother Seal of Approval and then practically skips back out the door. Bailey watches him go and then sees Mere slink guiltily out after him and gives Mere a bit of a disbelieving face since it's clear she didn't admit anything.
Lexie is waiting impatiently in the hall when Callie walks by to answer an emergency page. Lexie is stuttering so badly she can barely explain that she was the one who paged Callie. It takes even longer for her to explain that Mark is hurt and that, "He broke a bone. I... broke his bone." Callie breaks into a grin until she realizes that the look of terror on Lexie's face is real, and both women immediately turn and hustle down the hall.
Hunt sees Cristina in the supply closet and after a moment, goes in and closes the door. He apologizes for showing up drunk the night before and she quickly jumps in to tell him that it's fine. He goes on to explain that when he showers with a woman, normally it's with his clothes off... take a moment ladies, mull it over... okay, back to the scene. He also normally has a different night when he gets into her bed naked, which doesn't include passing out. She tells him that it's okay but he responds that it's not, and she agrees. But, she tells him he doesn't have to talk about it, and takes the moment of pause that this response gives to flee from the room and the conversation.
Eric is having trouble breathing, and Meredith asks him if he really wants to go on like he's doing, and asks if she should page Derek. Eric asks, "He's your boyfriend, isn't he?" She turns around quickly and he knows he hit the nail on the head, and he goes on needling her that he had figured they were dating, and that Derek has very good taste. Mere is struggling to keep her cool. As she goes to leave, Eric says he's thinking about lemons. This gives her enough of a distraction to turn around with an even face and ask what the heck. When Eric's grandfather died he said he could smell lemons, so Eric has been waiting for the same thing but can't smell anything. Of course, he adds with his creepy grin, his grandfather was a liar. Mere asks again if he's sure he doesn't want her to page Derek, and with the grin gone he tells her he's sure.