He asks her how she knows that, and she tells him that they talk about it a lot (in the future).
After a while, John says he needs to get some sleep. Cameron sits up. Cameron, he didn't say "leave." "And Riley?" she asks. "I know. I know," is John's response. Yeah, it makes total sense that a machine would take "I know. I know" to mean "I'm not going to see Riley anymore."
So the next day, after the chit-chat with Sarah about the floor safe, Cameron gets in an SUV and drives off.
At the supply dump, Cameron sees the lock hanging on its hasp on the sliding bolt, unshoulders her backpack and enters with her gun drawn, to find Derek. "It's you," she says. They lower their weapons, and he asks if she's been stealing his supplies. "We needed to make a small bomb," she says, and Derek bitches about the supply drop being built by his people for his people. What a bio-racist! "John was supposed to ask," says Cameron, brushing past him. "John needs to get his head in the game," snaps Derek. And then they bicker at each other over how Derek doesn't spend much time at the house, and Derek doesn't have a bed, blah blah blah, until Derek's cellphone rings. He looks at the number on the screen -- 01152315441736, for what it's worth. "Who's that?" asks Cameron. Derek just ducks outside the door. Cameron takes out her own cellphone, and dials the number, gets a recording of a man speaking Spanish. She hangs up as Derek comes back in, saying he got an alarm code from John: he's in trouble.
So what's John's story? Well, we pick up with him, breathing heavier than we saw him previously, lying in bed, telling Cameron he needs to get some sleep. Only after Cameron leaves, he gets up, grabs a duffel bag "hidden" in the bathtub, and gets on his cellphone. "I'll be there in a few minutes," he says, and then heads out the back door.
So we're on the bus now with Riley and John, and he's making eyes at her, completely creeping her out, and she jokes that her foster parents gave her a rape whistle for moments like this one, so he starts telling her about living in Mexico, in a place called Dejalo, for a year and a half when he was a kid, and that's where they're going. She asks if he ran the idea past his mom, because she doesn't like surprises, and is this a revenge fantasy, and blah blah blah, and I'd just like to say that if I wanted to watch Dawson's Creek or 90210 or whatever shit teen soap is all the rage these days, I'm perfectly capable of choosing to watch that shit on my own, but this show has FUTURISTIC KILLING MACHINES, and that's what we want to see. Then John tells her he booked the honeymoon suite, and she's surprised/shocked/thinks he's kidding, and he tries to make a suave face at her, which really consists of him squinting, and I think his makeup is a lot different this episode.