"tell me the truth"

"Scene: Clara's house. There is a knock on the door

Voice: It's Emmett, Clara.

Clara is writing at a desk. She gets up and opens the door, smiling when she sees Doc.

Clara: Oh, Emmett, won't you come in?

Doc: No...I better not. I...

Clara: What's wrong?

Doc: I've come to say goodbye.

Clara: Goodbye? Well, where ya goin'?

Doc: I'm going away...and I'm afraid I'll never see you again.

Clara: Emmett...

Doc: Clara...I want you know that I care about you deeply, but I
realize that I don't belong here, and I have to go back to where I came from.

Clara: And where might that be?

Doc: ...I can't tell you.

Clara: Well, wherever you're going, take me with you!

Doc: I can't, Clara. I wish it didn't have to be this way...but just
believe me when I say that I'll never forget you and that...I love you.

Clara: I don't understand what you're trying to say.

Doc: Clara...I don't think there's anyway that you can understand it.

Clara: Please, Emmett, please...I have to know. If you sincerely do
love me...then tell me the truth.

Doc: All right then. I'm from the future. Clara looks at him in
disbelief. I came here in a time machine that I invented and tomorrow I have to go back to the year 1985.

Clara: Clara's face changes to a look of certainty. Yes, Emmett, I do understand. Doc looks relieved, but Clara slowly clenches her teeth and menacingly steps toward him. I understand that because you know I'm partial to the writings of Jules Verne you concocted those mendacities in order to take advantage of me! She slaps Doc on the cheek. Oh, I've heard some whoppers in my day but the fact that you'd expect me to entertain a notion like that is so...insulting and degrading! She turns back toward her door. All you had to say is "I don't love you and I don't want to see you anymore." That at least would've been respectful! She slams the door.

Doc: Staring after her. But that's not the truth!

There is a pause. Doc, in a heartbreakingly emotional way, removes the flower from his suit that Clara has given him and leaves it on the window sill next to her doorway. He exits, and we notice through the window a bedroom. Clara runs into the room and buries her face on the bed, crying."

Back to the Future, Part 3