This is completly AU type of story. My try at Library fix it. Enjoy!
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It's not easy to have two different names. Connected with two different appearances. It's not easy to become a daughter if you had never really been one. It's not easy to be married to the man you were supposed to kill. It's not easy to met him time after time and see less love and more distance in his eyes. It's not easy to pay sentence for a crime you didn't committed.
It's easy to die. Be sleepless for ages and then fall into the darkness. That's dying. Dying in virtual world is even easier. You just have to make a decision. So why? Why hasn't she done that already? What she was doing now, what she was now was ridiculous hanging between. For someone like her it was fate far worse than death. Beside that, it wouldn't be the first time she died. She did that after escaping the Silence then because Adolf was a lousy shoot. At least to save her husband. His future and her own past. She sure knew that dying didn't hurt more than looking at him when he didn't recognized her. He looked at her, he looked through her… and it was done. She knew that it wasn't him, but someone clearly different. He may be the Doctor only not her Doctor. Life without him and adventures wasn't worth living.
So why bother to wait? She knew it was impossible to rescue her. Because either way he would tried. She had read all books written. Why did she still believe he will get her back, that she will get him back. Even Doctor isn't capable of giving her new fully organic body… Fully organic body. But right now she didn't need one. Yet. Firstly she had to escape the Library. And she might have an idea how. Thanks goods, that person whose assistance she needed prefers digital information above written. (His lose if somebody ask her but probably her best chance.) She only has to write a message. She spent so much time here that working out the system even alerted by Doctor didn't take long. Now there was only waiting.
It's good thing that consciousness doesn't get older. She doesn't get older like that. She doesn't have to worry she will look like old, dry, granny when they met again. Finally it happened. Answer to her message. "Dangerous adventure. Impossible quest. Good pay. I'm definitely in. But why do you need Dalek?"
Should I continue? Should I leave it? Let me know what you think.