Oh, that's a really good, sharp Fitz piece, well done.
This is an incredible character introspective. Fitz is such a brilliant guy to write because as tragic and complicated as his relationship with the Doctor must be, he never loses that inexpressible "Fitzness" that makes him able to deal with things. Even when he isn't, even when he can't. He freaks out beautifully, then like the Doctor can suddenly be normal again. Though wasn't his and the Doctor's "break up" during the multiuniverse arc so heartbreaking?
Great insight into Fitz. I fear it's inevitable to doubt, and who can tell Fitz isn't right to?
Heh. Poor Fitz. He never recovers from all this, does he?