With Sarah on her left and Eleanor on her right, constantly grabbing and snatching across her plate to touch her girlfriend, Jackie listens in her scrubs to them telling the story of how they drunkenly talked their way onto an American military base in "the Bavarian fucking Alps" by telling the guards they were the wives of colonels and generals, but then got caught because they couldn't keep their hands off each other, and eventually ended up explaining to "this gawking sergeant" that their husbands were in Kosovo and they'd ended up consoling each other. The whole time Jackie's getting more and more weirded out, as giggly-weird Eleanor crawls all over her like a licking puppy.
Neither of them really notice just how weird Jackie's feeling with this radical change in Eleanor, because they're making eyes and discussing Sarah's move to the Washington bureau. Eleanor gets a text about the latest ER case -- a man having been shot by an arrow, in the lung -- and they clear up. "Cupid's having a bad day," Jackie jokes. The women disagree. They fight over the bill, they caress each other's hands, Jackie makes some jealous-much joke about how Eleanor usually cleans her plate, and they don't even hear her because they're staring at each other so hard. Jackie is once again more awkward about this than we've ever seen her.
Which I guess is the other main thing, which is that Jackie and Eleanor are the strongest couple out of the three couples Jackie is involved in, and seeing some other lady come ripping into Eleanor's life and making her act puppy-dog and cutie-pie and not focus entirely on Jackie -- this glamorous woman who casually opens Eleanor up to talk about real things and not the fake things that keep Jackie and Eleanor afloat, like ice skaters flying by holding hands -- is a whole other kind of betrayal. She uses the ideas of Eddie and Kevin to keep her lives and pieces separate, and to see Eleanor doing the same thing, having merely fallen in love, is a mirror to her own stuff.
"Some rich douchebag drank his lunch and then decided to shoot an arrow off his roof," confirms Lenny the EMT, and Eleanor goes, "You're going after rich people who drink? I don't think I like that very much!" He enjoys this as much as one can, which is a lot, and they send Thor up to Radiology, and Lenny quietly tries to ask Jackie about Zoey, but that's like rule one. The patient tries to say, several times, that "it" is brand-new, and while Coop admires the arrow (he knows about them because his roommate was in Archery in college) and Eleanor tells him a million times to get the fuck out of there and stop talking, they finally figure out what the patient's talking about: It's not the arrow that's new, it's the lung.