ballerina in the music box

Erik is heart broken after that Christine leaves him and is thinking of taking suicide when he met Elizabeth, a little ballerina on the opera. she is hurt and about to die but Erik saves her. he takes her to his home and is falling madly in love with her, which makes him sad, he don't wants to hurt her... okay this is a story i had in mind but i yet don't have an end on it, i can think of two different, one sad and one happy. so PLEASE tell me if you want an " happily ever after" or that someone dies.