Another Night Fury (How to Train your dragon)

What if Hiccup and Astrid broke up? What if Hiccup found.... Or was found by a strange girl very similar to himself, whom had another night fury...
Astrid moved away to take her Uncle's place as cheif on another island, and she and Hiccup don't speak anymore. But when Hiccup is found -by accident- by a strange girl called Vivian, who wears a set of silver armor with black accents, and her symbol is a swirling night fury, she wears a long black cloak around her armor, which she uses to fly, her dragon's tail is not ripped off, and she has both feet... So what will happen?
Partially based on a dream I had a few nights ago...
Hiccupx(original character)