After Doctor left Rose in the tears into the Parallel Universe, she knew that her life will never be the same.
It was like her life before she met him. He changed her life forever.
She was remembering their most beautiful adventures – the last day of the Earth which was their first date, London when they danced, New New York,...
Rose was sure that when she was gone to save Doctor that there happened something but she couldn't remember what. But she new that it was important.
Of course, there were the times when she doubted in Doctor. Like when he regenerated. Rose thought that she's lost her Doctor. But she learned that the Doctor changed only his face but from inside he was the same Doctor she knew and loved.
And now he was gone. For good.
At least, he came to say the last goodbye to her. He burned up the Sun to do that. But he never replied her. Rose didn't know was she only another adventure for Doctor or he loved her, truly, like she loved him. Like she confessed to him. She thought that she'll never find out the real answer.
But, several months after Doctor's last visit, a strange things started to happen. Like something very bad is about to happen.
Rose needed to alert the Doctor about the threat.
So she tried to call him but all she saw was a young and beautiful black girl. "So Doctor already forgot me.", Rose whispered with sadness. But he needed to know about the threat because he was the only person who can save the Universe. That's why she couldn't give up.
The transporter was ready. And since there already happened a crack in the Parallel World she could go into the world she was born and see Doctor.
But a reddish woman came to her and she knew that she came too late this time.
Another woman in Doctor's life.
The thing that Rose didn't know back then is that her and Donna's, what was the name of Doctor's current companion, paths will cross.
The Parallel Universe stopped to exist and there was the only one reason for that – something very bad happened to Doctor.
Rose went to back to the old world and found out that Doctor is dead and that everything good that he's done didn't exist any longer.
It was the time to meet with Donna and make her to correct the mistake she did. But, Rose couldn't tell her name to anyone or the things will become even worse.
After she met Donna, Rose realized that she was sassy but nice person. She felt sorry to tell what role she has in this twisted world.
But, eventually, when everything was over, she could send only one message to Doctor, the thing that only two of them could understand. So she sent the real Donna back to Doctor with two most important words:"Bad Wolf".
And now Rose was standing and waiting for the love of her life to appears with the TARDIS.
Finally, he came. He turned around and the smile on his face when he saw Rose deleted every doubt that she ever had about his feeling about her. He loved her.
She ran into his arms wondering what the future holds for them.