When Olivia and Peter are at the bar, Stevie Wonder's For Once In My Life can be heard playing in the background. This is the same song Olivia sang to Peter in the episode "Brown Betty" from Season 2.
Trivia: There is a Tulip Food Store outside of the Rosencrantz Building. This is a clue toward the next episode, "Subject 13."
The cracks in the window change after Walter demonstrates the soft spot of the universe.
Trivia: The last glyph at the end of the episode has a yellow heart instead of the standard yellow dot.
Trivia: The Observer appears at the beginning of the episode walking past Chris and Sylvia as they go to the party.
Trivia: The glyph code for this episode is HEARTS.
Olivia: So, what was so important?
Walter: Hmmm? Important? Breakfast. The most important meal of the day. And I proved it in 1973. Blueberry pancakes. A Bishop family specialty, best eaten while it's still warm.
Olivia: Walter, you didn't have to do this.
Peter: That's exactly what I told him.
Peter: I know that you struggle with trust issues. That you have a difficult time letting people in.
Olivia: Well, I... I'm struggling because the reasons are real. I'm not making them up.
Peter: I know. I never wanted to be one of the reasons. And I still think about her, because I spent so long imagining going down that path with you. Imagining what it would be like to wake up in a bed next to you. To sit around, just the two of us having a cup of coffee, reading the paper. And then finally, I had it. I've seen what the two of us together looks like. And it's beautiful.
Olivia: Peter, she's the one that took it away from us, not me.
Peter: And now? Who's the one stopping us now?
Peter: Hey, Cupid!
Walter: Did my plan work?
Peter: Well, if your plan was to make things even more awkward and painful between Olivia and I, yeah, worked like a charm.
Walter: Perhaps I should have made a frittata.
Peter: Walter, we keep 'em in the back.
Walter: Then why are you all sitting around?
Astrid: I'll go get it.
Peter: You know, a thank-you wouldn't kill you.
Walter: Oh, I'm sorry if at this moment, when the universe is collapsing, I forgot the magic word.
Peter: So you're afraid? Afraid of what?
Olivia: That you were right, that this isn't just about her. It was, but I think that this is me. I think that I'm stopping this. Maybe I'm just incapable of being vulnerable...
Peter: Olivia, come on! You know that that's not true!
Olivia: It must be! I'm terrified that I can't fix this, that... that this is just who I am.
Olivia: Do you really think that this is the end of the world as we know it?
Peter: If it is, there's no reason to wait outside in the cold for it. There's a bar right across the street.
Olivia: Wait, you think that now's the time to be throwing back shots?
Peter: Who said anything about donning shots? Maybe they got fries.
Olivia: Now you're talking.
Peter: Did I ever tell you about the time Walter did his rendition of Never, Never Going to Give You Up?
Olivia: No, but I actually love Barry White.
Peter: He was only wearing his socks at the time. Doing the Hustle, there was a lot going on.
Broyles: I need to run this up to channels.
Peter: Not exactly how you imagined meeting the President, huh?
Broyles: I already know him. He doesn't like me, I beat him at golf.
Music: Pale Blue Eyes (The Velvet Underground), For Once in My Life (Stevie Wonder)
Canada: February 18, 2011 on Citytv
Australia: March 2, 2011 on GO!
Latin America: March 29, 2011 on Warner Channel
UK: April 20, 2011 on Sky1
Sweden: July 15, 2011 on Kanal 5
Finland: December 7, 2011 on MTV3
Poland: April 30, 2012 on TVN
Czech Republic: April 1, 2013 on FANDA