Alice stares at him for a moment. When he says he thought she looked comfortable, the first thing that immediately crosses her mind is that she's actually pretty comfortable around him.

But actually saying that out loud? Nope, no way. Alice is much too tsundere closed off for that. So she sure keeps that thought to herself.

"Good. You be my social bodyguard." (As if you couldn't scare away people easily yourself, Alice!!)