Sylar gets the feeling that she's being condescending towards him. He's not a child.

(Never happy unless he's complaining, this one!)

But he resists the annoyance that flashes inside him, and is careful not to mention it. Perhaps he'd have to beat her off with a stick to make her abandon him, but he isn't willing to test that theory. Not when she's his only link to the world -- and to his life.