Sighing, he sat back on his heels, head down, and toyed with the loose ends of the rope. "So for however long I stay here, I don't have to deal with her, but I can't kill him. If I go back, I get a chance to kill him, but I have to deal with her. I want him dead, but I'm not around him much, whereas she's part of my team and doesn't know the meaning of personal space." Neither thought was very appealing.
The idea of showing up only to leave a few days later didn't sit right with him. If he was going to be stuck there, he wanted it to be for a long enough time to get some use out of it. If there were others there who could put up a decent fight, then he'd be able to keep his abilities from dulling, maybe pick up a few new tricks while he was at it and not only have something to show for it but have something that could perhaps catch Itachi off guard when he returned.
He raised his head, a curious look in his eyes. "So being that you're the only one here with any knowledge of our world..." There was a pause while he thought it over for a moment before extending a hand to her. "...truce? "