He unlocked the TARDIS and stepped in. Waited for Jack to follow. "I have no idea what this is about. You asked me to invite you into the TARDIS. You're welcome here, and I'm glad to spend time with you, so here we are. I'm still a little confused by your questions, but I answered them, because I like you, and you have reasons to maybe not trust me, that I'd like to alleviate. But since you mention it. What is this all about?"