OK, I'll write sentences what I think how the story is. Please say for each sentence yes, no, sort of, in a manner of speaking, not exactly that but coming close. Ok?
1a There are two seperate "moments" really important for this story, A and B.
b Or more then two.
2a One of them (A) is really a moment. He looked at his mirror image and died immediately.
b The other "moment" (B) is also a moment. (matter of seconds)
c Or longer. (maybe a day)
3 Between A and B is, let's say, about three months.
4 Is B (three months) before A? (Or three months later)
5 He died only once. At moment A he looked in the water and died
a the water can be a lake
b his heart stopped
c his breathing stopped
d his brain died
e his whole body was dead
f his body was just a "normal" dead body
g he fell on the ground or in the lake
6a Until that moment there was nothing strange/special visible at him, except his beauty
b from that moment there was nothing more strange/special visible at him, except he was dead.
7 Same as 6 but invisible instead of visible
8a He was acting at a way no one else could do
b the only reason that he was the only person who could do that is this undying love to mirror-image
c Have "undying" and the

a special, important meaning?
Indeed they would, it does look very strange.
d The quote is about that acting
e He needed magic for it but didn't have magic power
f Was that acting a matter of a moment
g moment A, B, in between, all the time even before the first moment.
Magic, um... If a man who'd do the same can exist without magic...
h He didn't need magic to act that way, but for acting that way he needed magic to exist
9 The rest
