Jack put his hand up a little, as to tell her to slow down as she ranted. He knew all this already, of course, she didn't know that he knew. When she finished, he gave her a sympathetic look. He understood the pain of not knowing if a person loved you, he was also occasionally the person who caused such feelings. But he wasn't about to think about his lover right then, not when Rose was on the verge of a nervous breakdown.
"Love makes you do the goofy, which occasionally includes doing the impossible. Which you obviously already have a handle on." He said with a little smile, gesturing to her.
Jack knew the Doctor loved her, but he also knew telling her that wouldn't fix anything. She needed to hear it from the lanky Time Lord himself.
At the mention of a Torchwood someone, Jack arched an eyebrow. "Oh yeah? Well then, describe away." He said, leaning back in his chair as well.