Adam comparing getting patted by Katie to being "slapped by a sea otter"
Kyle busting Rachael in front of Adam after he catches her with another guy at an art exhibit.
Kyle: (showing Adam his evidence on his iPhone) Exhibit...WHORE!!! ... There she is with the Jesus-looking motherfucker! I did it! I fuckin' nailed you! I hated you for months! And now I have proof that you are a horrible person! Holy shit! Holy shit! Nothing? Really?
When Rachael is attempting to justify her actions and asks Adam how she's the bad guy, the camera cuts to Kyle who delivers this line:
Because you're cheating on him while he's sick, you fuckin' lunatic!