Theories are welcome. The more outlandish the better.
She surprises him, surprises herself. He can't process anything. Not the pained squint of her eyes, or the press of nails on his stomach, least the repercussions of being bare inside her. All he feels is warmth, wetness, and a tightness on his tip then he needs all the way to his base - everything that makes him feel, in the moment, like its exactly what he was put on Earth to feel. He no longer has patients enough not to arch up into her, to make her move over him. She wimpers and brings him back.
Zeke likes her more than he wants to. He never really got to know her before, only knew she was important to Four and how she jerked him out of his shell. She was important to Uriah as well, or he wouldn't have agreed. She's smart, tactful about her observations and stubborn enough that she's easy to train. It's easy to imagine how both his brothers got so wrapped up in her, he was starting to himself.
Infidelity isn't rare, but it was easier to hide when they were bigger. While most just don't settle into exclusive relationships, those that do have the constant temptation and ready access. So he's not surprised when he has a heartbroken new roommate crying his eyes out with a bottle. But explaining that doesn't help calm him or pry the jug from his locked grip.
Collaboration, cooperation, engagement, exchanging, progressing, aligning…. A room full of factions trying to be more like abnegation and less like themselves. It borders on hilarity for how little they know what he knows so well. He's caught off guard when he's put in the center of the conversation, thinking his black cloaked him from attention. But clearly some of them see him in grey.
Defeat is on the horizon inevitable as the rising sun. She wonders why she keeps coming back. Her apprehension started with the swing of his mood, then backed up to the front door before migrating to when she packed her bag to leave. Now she dreads seeing his indifference all day and into her dreams. Its his slow punishment and she feels guilty enough to serve her sentence but she knows it ends with her alone in her apartment. She contemplates taking the option now before he banishes her himself. But that would make her a coward.