She scoffs again. Sam didn't exaggerate much, did he? "You're not a ponce but neither are you bulletproof. And if you don't ice that ruddy thick slab of granite you call a skull, my guess is that it'll take twice as long to heal. You'll go stir crazy long before then, staring at these four walls, waiting to go back, and if you go back before it's healed, you'll have no reasonable explanation for such severe injuries."

That said, and the ice pack reapplied to the side of his face, her tone gentles somewhat. "You took me to Manchester because you didn't want me to spend Christmas alone, and because I'm your DI, you felt -- well, I don't know what you felt, honestly. But it was a lovely holiday, and your mum is a fantastic cook."

There's a genuine affection in her voice for Betty, and she blinks several times, looking back to the glass he poured for her. She drifts away from him, back to the drink which disappears in a few long swallows.