She's in prison. Has been for 3 months now. It wasn't anything big, her and her boyfriend Montparnasse drunkenly thought it'd be goddamn hilarious to steal the town monument: a great big stone barricade symbolising the uprising of 1832. They hid it in the woods, hidden behind a big rush of trees. Apparently there's CCTV or something that caught them pushing it off of the stand and through the town centre.
He's the prison guard. He didn't know her until the day she came up to him in the lunch room and asked him where her boyfriend was. He was the bearer of bad news, obviously, and has to break it to her that her good ol' boyfriend was in hospital for getting into a fight with the biggest guy in his section. He sees a look of amusement in her eyes as she whispers ''Parnasse' under her breath with a small smile on her face, shaking her head simultaneously. They eat lunch together then, since she has no one else to share it with.
They meet every lunch time after that, it looks weird to the other prisoners, and she gets called a suck up by all the other girls in her quarters. She simply gives them the finger, it's not her fault that the handsome jail warden thought she was hilarious. Slowly but surely, it becomes a tradition.
He falls for her, because that's what happens in all great romances. She still has a boyfriend, but he likes to pretend that maybe, just maybe, she's falling for him too. He starts giving her advantages, things he could get sacked for. He lets her have extra breaks, and every now and again she gets to come into his office and laugh at his baby photos that his mother made him pin to the wall. He kisses her in his office too, and she doesn't resist. They begin to forget that she's not already taken, and that it's them two that are together. He starts wishing that her boyfriend will be in hospital for a while longer. Until one lunch time when he's already sat down at their table, an apple for himself, and a packet of pick'n'mix that he smuggled in for her. She walks into the white room with Montparnasse, and he swears he can feel his heart break in two. The couple sit down together on the bench Éponine usually accommodates alone. She announces that they get to leave at the end of the week, 2 days left of living in this hell hole. He smiles at her, happy that she can finally leave. He's always been good at hiding his emotions from people.
He doesn't quite think it's real when it happens. He tries to block it from his mind, pretending that maybe she was just joking around. She always teases him, he never thought it could potentially make his heart hurt in his chest. On the day she leaves, he watches her through the window of his office. Her and the boyfriend guy are walking out, his arm over her shoulder. When the gates lock them out of the prison, he turns his head bitterly and walks over to sit at his desk. There, tucked under her file, is a picture of her and her brothers and sisters that she told him about, all of them smiling widely at the camera. On the back of the Polaroid is her mobile number and the phrase 'see you later, prison boy'.