The Doctor nodded and quickly opened the door for Jack, closing it immediately once the man was inside. He kept his distance, for radiation reasons as well as some that had the potential to be even more dangerous, even if in more complicated, emotional ways. "I'll need to walk over to the main control room. You can go back to the TARDIS already, I suppose." He wasn't sure if Jack remembered that talk he wanted to have, but he wasn't about to bring it up himself. "Just stay away from the console room. Go to your room if you have to, you know. Kiss and stuff right away."