LucyxJuvia
Angst
Hidden
Juvia was always good at pretending.
Oh, sure she called the girl her 'love rival' but there was no doubt in her mind, it was Lucy who had the rain taken away. After all, if she hadn't joined Fairy Tail, then Master Jose never would have attacked Fairy Tail and she would have never gotten the rain taken away by 'Gray-sama'. So really, Juvia had Lucy to thank.
The rain woman knew it too. But she was embarrassed, as while lesbians weren't unheard of, it would hurt even more for Lucy to reject her than her 'beloved Gray-sama'. So Juvia pretended. She pretended to chase after Gray. She pretended to get jealous after him. She pretended to stalk him.
But really, it was Lucy she was afraid of being taken away from. Gray, she was jealous of when he was near the blonde. It was Lucy she stalked, Gray just happened to be nearby. But she never dared chase after Lucy openly. After all, how many times had she been rejected by the one she chose to love? Too many times to be sure.