Dr. Brand: Dick, what compelled you to invade my personal space? Oh, and read Mary's files?
Dick: I did it because I am a man who will do irrational, often annoying things, out of love for Mary Albright.
Mary: Why can't you just act like a normal human being?!
Dick: Because I'm never going to be a normal human being, Mary! And do you know why? Because I'm lousy at it! And you're just gonna have to accept that.
Dr. Brand: Don't listen to him, Mary.
Dick: I'm happy with myself. I don't want to alter who I am. I like me. Get that down, Dr. Brand.
Mary: So you're saying you're never gonna change.
Dick: Dick Solomon, love him or leave him.
Dr. Brand: You've got a choice, Mary.
Mary: Oh, Dick, I do love you. And I know what would happen if I ever tried to leave you.
Dick: Yeah. Irrational and annoying things.
Mary: Yeah.
Dr. Brand: I wouldn't normally say this, but you two should not be together.
Dick: Happy Valentine's Day, Mary.
Mary: Happy Valentine's Day, Dick. [they kiss]