Hot Nerd: "Spencer, just... Nobody asked her to join, okay? Let me take off my glasses to become even more dreamy and sincere. Just do your Hastings thing, and spank her in this Quiz-Off like I know you can."
Spencer: "Hot Nerd, you're so great. Thanks! I do believe in myself."

A: "Quit while you're ahead, bitch."
J: "And dump that Toby! Hot Nerd is on and poppin'!"

Mona's just at the machines getting a healthy snack, so she didn't send either of those. (Hint: I did. I sent one of them.) Spencer is befuddled. But as ever, I'm sure the purifying flame of her righteous insane hatred will see her through any confusing grey areas.

LATER

Spencer: "I'm so sure getting killed is going to stop me from being team captain."
Hanna: "Or maybe we should just stay away from her and see if anything befalls her."
Emily: "Like what? What are you talking about?"
Spencer: "No. I fight and vanquish evil in all forms. Including through Quiz-Offs."
Emily: "This thing with the bike wheel. If Mona did it, specifically so she could run against Spencer, that would be a very Alison DiLaurentis thing to do."
Spencer: "Good point, actually."

Mona: "Hey guys! Speak of the devil, huh? Anyways, thanks for being so cool about me ruining one more thing for ya, Spence. I would have called or texted, but..."
Spencer: "No. I got your text."
Mona: "Wasn't me. Terms of my release were no phone and no internet."
Emily, swiftly: "Then whence your It Gets Better video?"
Mona: "Oh, um. That was the Vice-Principal that let me do that. One-time thing. Supervised internet. Homework and stuff."
Aria: "That wasn't homework. That was desperation on an Aria level."
Mona: "Look, Jason said he would help me, and he got permission to..."
Spencer: "[Jason-related freakout.]"

Hanna: "We know you were sneaking out of Radley, Mona. It makes it tough to believe anything else you say or do."
Mona: "Ouch, actually. Okay, I guess I'm done here. I knew it would tough working this all out with you guys, but damn."

She runs off crying. The Liars are unmoved. Or rather, they are unmoved as far as each other is concerned, but each seems privately a little doubtful of whether it's still an act. Finally Spencer is just like, "That's enough thinking about her. Move out, now." They leave, in formation. Spencer death-glares, Mona shrinks.