On this week's Grey's Anatomy, "Don't Deceive Me," we finally got to see the aftermath of Callie’s shocking revelation. Callie told Mark she was pregnant, and he was incredibly excited until he remembered that he was in love with Lexie and had to tell her. 

When Mark told Lexie at the end of the episode that he got Callie pregnant, she walked out on him after pointing out that Mark was doing this to her for a second time.

Will she forgive him any time soon? It does not seem like Mark is willing to give up being the baby’s father to save his relationship with Lexie.

While Arizona admitted to Teddy that she was not sure if she wanted Mark’s baby, things changed when she saw the baby’s heart beating. At the end of the episode it seemed clear that Arizona and Callie were going to try to make things work. 

Do you think things will go wrong yet again or are they together for the long haul?

Throughout the episode, Callie thought something might be wrong with the baby. Dr. Lucy Fields is her obstetrician. What did you think of her? Is she a good addition to the show? 

Callie eventually admitted to Mark that her fear of losing the baby was tied up with her fear of losing Arizona.

Derek finally began his long-awaited Alzheimers clinical trial. 

Daniel, the second clinical trial patient, began to freak out and requested the presence of the woman he loved, Victoria, who he met at the facility, rather than the presence of his wife.

In perhaps the most emotional moment of the show, Daniel’s wife tearfully begged Alex to give her husband the drug instead of the placebo.

Alex began to feel the pressures involved in helping with such an important clinical trial, and Meredith shared stories about her mother with him to calm him down.

Alex realized that Meredith was the only one strong enough to help Derek with the trial, and, after Alex quit, Derek asked Meredith to help with the clinical trial surgery the next day.

Do you think that it is a good idea for Derek and Meredith to work together? Will the clinical trial hit too close to home for Meredith? It will be interesting to see if she is able to distance herself from the patient.

Another sub-plot involving Derek was his comment to Mark when he found out Callie was pregnant with Mark’s baby. Will Derek and Meredith get jealous of Mark and Callie?

The Chief was annoyed when he found out that Bailey had been tweeting surgeries, but he finally embraced the new technology when it saved a patient. He got excited about teaching again and pulled out Meredith’s mom’s old journals.

Do you think the Chief is going to get more hands on with his teaching again? It was also nice to see Bailey and the Chief’s old-married-couple dynamic in action.

Cristina and Jackson fought over working with Teddy on a quadruple bypass because they both want to be chief resident. Cristina showed that she was not just trying to win the competition but also that she actually has developed good bedside manner when she said to the patient, “[y]ou’ll be great.”

On the other hand, she showed her competitive nature when she tricked Jackson into thinking she was upset by his comment. It’s going to be interesting to see whether Cristina, Jackson, Alex, or someone else becomes chief resident. Any predictions?

Kevin McKidd directed this episode, so Owen was not around much. The scene in which he explained to Chief the difference between “tweets” and “teets” was priceless though.

How do you think Kevin did? How did you feel about the episode overall ? Leave us a comment after browsing through some of the night's best Grey's Anatomy quotes:

Meredith: Doctors practice deception all the time. We give vague answers to hard questions. We don't talk about post-op pain. We say you'll experience some discomfort. If you didn't die, we tell you the surgery went well, but the placebo has to be the doctor's greatest deception. Half of our patients we tell the other truth ... the other half, we pray the placebo effect's real. And we tell ourselves that they'll feel better anyhow, believing help's on the way, when, in fact, we're leaving them to die. | permalink

Sloan: That's my kid in there. I'm a dad. We're parents. A baby!
Callie: Okay, you're in.
Sloan: Should we get married?
Callie: Oh, no. I mean I'm all for raising a baby with you, but there's a line. | permalink

Callie: Words, make words. | permalink

Arizona: I might be having Mark Sloan's baby.
Teddy: Oh good lord, he got to you too. | permalink

Callie: (pointing to Arizona and Mark) Lesbian lover. Baby daddy. | permalink

Lexie: It's like turning off the TV when Clarisse is knocking on the door of the house. It's silencing the lambs, and the lambs want to scream, Dr. Bailey. The lambs want to scream. | permalink

Mark: I don't want to be the cool uncle. The cool uncle's only cool until the kid's like nine and then the cool uncle's just creepy. | permalink

Derek: How can Meredith and I try for months and not have any luck and you look at someone and a baby appears.
Mark: Sloans are unusually fertile. | permalink

Callie: I am a hormone casserole. My body is not my own, and something feels wrong. | permalink

Cristina: Don't give up on yourself. Let us help you. | permalink

Teddy: You really had to go there. You're that insecure.
Jackson: No, just that much of an idiot. | permalink

Chief: I'm trying to look at Bailey's teets on the internet.
Owen: I think you mean tweets, Sir.
Chief: Uh, whatever.
Owen: Uh uh, not whatever. It's important you get that one right. | permalink

Arizona: Shut up. Just shut up. You don't get to tell me that we're not together. We are together. Because I love you and you love me, and none of the rest of it matters. We are together. And if you ever sleep with anyone else again, man or woman, I will kick the crap out of you. Now you sit your ass back down there because that's my baby in there. I don't want anything happening to my baby. | permalink

Alex: I'm off the trial. It's too depressing. I can't handle this for the next two years. | permalink

Meredith: Doctors practice deception every day — on our patients, on their families. But the worst deception we practice is on ourselves. Which is why sometimes it takes us a while to realize that the truth has been in front of us the whole time. | permalink

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.