Chuck calls and tells someone he'll meet them back at Castle after he packs up and smoothes things over with Hannah. He heads into the control room and apologizes, but she scolds him for leaving her alone on her first assignment, and asks why he'd say things are over with him and his ex when they're clearly not. He says it's not what she thinks; it's just that he and Sarah have a unique relationship. She says it sounds really special, and she feels like an ass for kissing him like that. He says he's the ass, and she's like, "Yes, clearly." She says they should just keep it professional, and she'll see him at work. As she leaves, she calls him a "Weirdo" under her breath. Poor Hannah, but man, that seems a little harsh for a girl as seemingly sweet as her. Commercials.

Ellie knocks four times on Morgan's door and then lets herself in. Exasperated, Morgan tells her that's, like, six knocks short. He tells her to come in, since Chuck's asleep after he was out until God-knows-when doing God-knows-what. Morgan thought Chuck was working until he got a pissed-off call from the museum curator. Ellie thinks this puts them back at Square One, but Morgan says he had an epiphany. Ellie: "What's that?" Morgan: "It's a sudden, intuitive realization. I looked it up." Ellie: "I know what an epiphany is, Morgan. I'm asking what epiphany you had." Morgan suggests an intervention to get to the bottom of this, but Chuck walks in and Morgan acts like nothing's going on, and follows Chuck out to work. Ellie whisper-yells after Morgan that he's a coward.

Museum. Ring guys have the curator tied up as they look at the surveillance footage and ID Chuck as the guy who stole the mask. They see him kissing Hannah and breaking into the place with Sarah, and say he's a real Casanova. So he wants to see how cold-hearted Chuck really is (really; that's what he says). Buy More. Morgan asks Hannah if it was a tough night at the museum, but he pretends he couldn't make out the curator's British accent, so he doesn't know what happened last night. She says she doesn't want to point any fingers, but... Morgan gets that she wants to be loyal to her boss, but that he's his boss, and he'd really like her to think of him as her friend. He just rambles, and she doesn't get to say anything. Then the phone rings, and Morgan answers. It's Vasillis calling from the museum. He says they are still having a computer problem, and he'll send her back out on the house. She tells Morgan he's a good friend, and he says it's sweet, and they can build from there. But she's already long gone.