Neighbors

"I love you, Natsu," Lucy had whispered. Natsu smiled and replied, "I love you too, Luce. Like a brother." Nalu AU in which Lucy and Natsu are childhood best friends. Oh, and she's desperately in love with him, but he's too dumb to notice. After leaving to attend an all-girls' prep school, she returns, a changed woman. But will he even notice?