Making assumptions now, was she? How...unnecessary. But judging by what he knew of her, that wasn't out of the ordinary for her. Lazzaro was well-mannered because that had been the way he'd been brought up. Sure, he thought about what he said and did around other people, but it wasn't by any means a method of coming off as robotic. Her opinion was her own.
"Very well. You want to know how I really feel?" he asked. That calm mask of his abated a bit. If he wanted him to be genuine, that could be arranged. "It's true, I do dislike you some because you don't particularly care for my sisters. It only makes sense, as they are my family." Laz ran a hand through his hair a moment before putting his hand back in his pocket. "I also don't care for your sarcasm or your particular...choices of words."
His wording was specifically meant for him not to get mad and so he could have a rational conversation with her. "As for my being mannered, it was how I was raised. There is no need to be impolite to someone if it isn't necessary."