This is such a beautiful and moving story! Percy is one of my favorite characters, and I love how you gave him so much depth here and showed us what he endured during the war. I was also happy to see that at least one person in his family cares about him and understands how he feels, and that he has not just one, but two handsome men pursuing him! (It's always nice to see him getting some appreciation in fanfic, since it was rather lacking in canon.) And I just love the gentle and persistent way in which Viktor courts and comforts Percy.
"Dragons are harder to catch."--That was such an awesome line, and sums up Viktor's character so well: how secure he is in himself, and how he doesn't worry about what other people think of him. (Well, except for Percy, of course.)