Astarion held your wounded hands in his lap, a smug look on his face as he poured cool water over the wounds, "Say it..." he chuckled, glancing up at your bitter eyes. "Say I was right about that chest being enchanted." He was already doing a good deed in patching you up, might as well balance it out with a little snark.
He'd warned you that a little orange chest in the middle of a cage would be enchanted to burn people, you'd insisted he was wrong.
"Well... you don't have to admit it I suppose. These bandages will prove enough," his eyes softened and he shifted a little closer, lowering his voice. "I do hope you learn from this though, I would hate to see you hurt again."
He didn't dare apologize for your pain, that would have been too soft. Instead he'd just offer a small warning and hope you took it to heart.