It would be the last unicorn that came to Molly Grue. It's all right, I forgive you

Molly:
No, it can't be. Can it be? Where have you been? Where have you been? Damn you! Where have you been? Schmendrick:
Don't you talk to her that way! Unicorn:
I'm here now. Molly:
And where were you twenty years ago? Ten years ago? Where were you when I was new? When I was one of those innocent young maidens you always come to? How dare you! How dare you come to me now, when I am this! [Weeps] Schmendrick:
Can you really see her? Do you know what she is? Molly:
If you had been waiting to see a unicorn, as long as I have... Schmendrick:
She's the last unicorn in the world. Molly:
It would be the last unicorn that came to Molly Grue. It's all right, I forgive you