Aww~ You poor thing! Just look up the music - the last song is called 'Don't feed the plants'.
It changes when Audrey II tries to eat Audrey - she ends up too injured and tells Seymore to let Audrey II eat her. And after that, Seymore can't stand to go on, and he tries to kill Audrey II from the inside, and then that guy comes and takes snippings. And then everyone comes on stage and sings 'Don't feed the plants.'

Probably, alas. *tear*