It’s a clear picture of this chemical addiction George has towards Lina. He clarifies to us that Lina is a drug and he cannot escape it. How terrible is it to love someone when you cannot really share your lives, thoughts and feelings with them. You feel as if you are talking to a wall or some imaginary delusion of a “seductive figure” that only exists in your mind. I'll tell you from my experience it's not a friendly or healthy feeling towards yourself.
Linafound a guy who calls her beautiful instead of HOT, George calls her back when she hangs up on him, he will stay awake just to watch her sleep, he wants to show her off to the world when she is in sweats, he holds her hand in front of his friends, he thinks she is just as pretty without makeup on. He is constantly reminding her how much he cares and how lucky he his is to have a woman like you, he turns to his friends and says, "that's her." This is the way he is.