This is so incredibly sad, and so, so incredibly well done. I think the third segment was the hardest to read, not just because of poor Jack but because you called it exactly right -- this is probably the one reason Rose should never come back, because I don't know that she could ever recover from learning she was responsible for this; it would completely devastate her. Yet the fourth segment is probably the most riveting, because that's exactly how I see him during that year, his dreams of Rose being the only thing he has to draw strength from. (And I've always thought that it was for the best that Rose wasn't with him during this arc, because the Master would have never allowed her to leave, and would have used her like he'd used Jack, to torture the Doctor. *shudder*)