Taxidriver: "What if she never came back?"
Ian: "What sort of a question is that?"
Taxidriver: "Well, go on, picture it. You wave goodbye at the airport, she gets on the airplane, you never see her again... could you live with that?"
Ian: "No... No, I couldn't."
Taxidriver: "Well, then you know what to do. Appreciate her and what you have. Just love her."