When she begins helping NCR, he feels betrayed. He watches as she runs errands for the Bear as the sniper follows behind her like a lost puppy. He's angry, and he catches her when the duo stop at the Ultra Luxe. She's in one of the suites without that man shadowing her, and he follows her inside.
"Haven't seen you in a while," she says without turning, and he pushes the door shut behind him.
"Not surprising. I don't fraternize with profligates," he says heatedly.
"You've been spending time with me until recently. I'm a profligate, and a woman besides," she says. He grabs her, turning her around to face him.
"Why are you helping them?" he demands, slightly shaking her. His jaw clenches at her confused look, and her calm voice.
"Why wouldn't I help them? Do you actually think I would help the Legion?" she asks incredulously.
"You could be a queen," he says, almost pleading. "You could be my wife."
"At what expense? The lives of thousands shackled to Caesar?" she shakes her head. "I won't. I refuse."
He pulls her to the bed, and she reluctantly follows. He slowly peels off their clothes, and feels that time is slipping away from them with each caress. He takes her roughly, his hands clenching on her hips until he's sure she'll bruise. He makes his name fall from her lips with each thrust. He holds her close to his chest afterwards, and thinks of how to delay the inevitable.
"We could leave," he said, and he knows that he would be hung to the cross for his desertion before they ever made it out of the Mojave. She gives him a wary look. "Leave all of this behind."
"Are you saying you value me more than Caesar?" she asks doubtfully.
"Yes," he says, and she isn't sure how to respond, so she doesn't.