Story,
White Fire, when she was young, couldve had the choice to save a young foal. She didnt get to him in time so the fire had killed him. His name was Sun Fire and he wouldve eventully become an alicorn but ya know, he died, He often comes back to haunt White Fire, annoy, and taunt her. This is the last time he came to her. He had saved her from Frombo(Sombras Son i made) and had died in the process. She and him had developed a strong bond(and crush)towards each other.(thats why shes crying)