The TARDIS puts a phone number on screen, its Jack's number. The Doctor was looking at her. He didn't like staying in the bathroom like he was, but he was so sick that it was probably best for the moment "I'm sorry I was barely able to make bathroom," he wasn't used to being so weak and useless. He lay against Rose and was breathing heavily.
He looked very pale and miserable and he looked at Jackie as she came in, his eyes were dull and he stayed against Rose.