Thus were the way of her dreams. Rose would meet up with the Doctor, they would come together in a torrent of passion and then spend the afterglow talking about his latest adventures. The more nights they shared in this way, the more control they garnered over their dreams. The Doctor could show her images of the more beautiful planets he visited, or replay important interactions with people to get her interpretation. In return, Rose could send him waves of affection and reassurance. What little she could divulge of her day to day life, without giving away any spoilers related to the saving of Gallifrey, she did. For the most part, she was content to listen to him talk.
At one point, Romana asked Rose if she wanted to know what her revised life expectancy was. Rose had a vague idea what it would be, but she decided that it was better not to know for sure. She would live for a ridiculously long time. So long in fact, that the exact number of years seemed irrelevant. What concerned her more, was that she might outlive the Time Lord version of her Doctor as well.
That issue hit especially hard when the Doctor regenerated. She knew it was going to happen eventually, but she didn't think it would be so soon. There had been a few nights without him, but that was hardly unusual since he slept so infrequently. What was unusual, was the ambiance of the next dream they did share. The madness and excitement that had always been part of his mind had dulled. In its place, was a comfortable weariness that is usually associated with age. His soul felt older but his face looked younger.
"Ehem… uh… Hi… er… Hello, Rose Tyler."
"Doctor! What happened?!"
Worried, Rose rushed over to embrace him. The Doctor stumbled backward a bit, but she caught him by the elbow of his tweed jacket. The man that had always been so light on his feet was a touch clumsy this time around. It was endearing. She couldn't help but feel charmed by his new persona already.
The Doctor told her about the slow death via radiation and how it gave him a chance for a farewell tour of his companions, including her. It bothered her that he had been in so much pain and she had no idea that it was even happening. There had to be a way that the other Time Lords could monitor him via their connection. She had to be able to help him some how the next time this sort of thing happened. She hoped that her younger, silly self had at least given him some comfort on that New Year's eve.
The Doctor also told her about Wilf and the Master, and how he was forced to kill Rassilon. Internally, Rose remembered what Romana had said about some 'unpleasantness', but she filed the memory away as something to bring up later after he knew about Gallifrey. She longed to tell him about her studies in the immense Citadel Library, and about how her painting had transformed her into a minor celebrity among the Time Lord youth. Romana was even teaching her to write in Gallifreyan. Now that he had regenerated, perhaps she would be able to tell him soon. She couldn't wait for this floppy haired lad to go off and meet with the War Doctor and save Gallifrey. He deserved to recapture that hope, and be able to hold on to it permanently.
...
...
"Sooooooo…. Remember that River Song lady I've told you about? The one I met in the library a while back? Aparently I'm married to her... Not sure when that happened, or why, but it certainly is… interesting. My future, her past."
"Hah!... Can't wait to hear how that happened!"
"Really? You're not jealous?"
"She can have you for a few days, but I'm the one you'll dream about every night forever." Rose winked. "If anything, she should be jealous of me."
...
...
"Amy and Rory finally got married!"
"About bloody time. Those two are like a dysfunctional romance novel."
...
...
"So River shot you?… Wait, wait, wait… Can we go over River's supposed timeline again? I need to take better notes."
It was at that point that Rose began keeping a detailed diary, two actually; one for the Doctor and one for herself. She did this partly because the Doctor's life and companions had gotten so wibbly-wobbly, and partly because she didn't want to forget everything that had happened to her at the Citadel before she could even tell him about it.
...
...
After 10 Years Living on Gallifrey: Rose was fluent in Gallifreyan.
After 75 Years Living on Gallifrey: Rose had read every piece of human literature in the Citadel library.
After 110 Years Living on Gallifrey: Romana asked Rose to become the first human to serve on the High Council. She accepted the position with grace.
After 290 Years Living on Gallifrey: Rose had become a renowned artist in as many as 8 different star systems.