Listening to her explanation of where and when he was, made Ianto feel more grounded, and he took a second to absorb the news about a battle and her current state. He didn't know when the idea of something like that had become normal for him, but it was somewhat reassuring that she was alive, and not the alternative he'd imagined for himself.
He paused while he considered her truce, but soon relaxed his hand from his hip and held it up in an amiable gesture, accepting that if she was willing to be civil, then he would be too. Really, he'd had no personal grudge against her back in Cardiff. Hadn't really known her, and he'd missed what had been happening to her because of his obsession with his own secrets. He'd hidden himself from the others too, and the fact that it was all behind him now didn't excuse him back then. He was in no position to behave like he had more right to be alive than she did.
"So who are 'we'?" he asked, not stepping forward, but not backing away either. "If there's a fight, it helps to know the sides." He had no intention of sparring with anyone at that point unless he was pushed into it, but it would be better to get a grasp about the place, and more importantly, those in it.