How it began

Elsa cant control her powers until jack frost appeared in her life.He taught her to control and how to use it. When Elsa finally learned it, suddenly, Jack disappeared. Elsa at the same time forgot how to control her powers. Till she's been called a .... monster.
One day, they met again. Jack asked forgiveness but Elsa doesn't want to forgive him.
How will their love story begin?