McYoda: We discovered the secret to Bailey's (Chandra Wilson) brilliant advice. Derek (Patrick Dempsey) finds himself as the go-to guy for all sort of problem, but mainly for Mark and Lexie. Bailey gives him sage advice: The trick of her trade is always a metaphor. That way, the doc in need can take advice without ever placing blame for the outcome. Genius. Miranda Bailey is an evil genius.

Best. Speech. Ever.:Finally! Lexie (Chyler Leigh) gives the most perfect "I love you" speech to Mark (Eric Dane). Actually it's more like word vomit. And it's perfect. And then it's ruined when Mark's girlfriend and aspiring baby mama shows up. The perfect moment foiled again. The only bright side was Mark's face during Lexie's confession. Clearly he was moved, and clearly this talk is not over.

Childhood's End: It's always sad and very dramatic when a friend or relative arrives at Seattle Grace. But it's never good news. We hate to say it, but the moment Arizona's friend set foot in the hospital, he had a black reaper shadow following him around the hallways. Remember Lexie's mom? Remember Henry (Scott Foley)? No good can come from this.

ONE-LINERS

"He just flew in from Tibet and he has cancer. The least I could do is pick him up from baggage claim." Arizona

"I want to punch your face." Meredith

"We're not going to kill your friend." Bailey

"My guy is a freaking fossil. Last time he was in the O.R. it was lit with candles." Cristina

"Don't be all cryptic and then just walk away." Mark

"So is having premarital sex with a really good friend in a men's room, but that just happened." April

Continued here:
Grey's Anatomy Redux: Which Failing Doctor's Future Is in Danger?