The Fine Art of Conversation

In 4 years and 11 months, I never felt that David and I have had a phone conversation. Thinking about this, really hurts.

Our phone conversations are:
Me: "David, how was your day?"
David: "1, 2, 3"
Me: "David, I love you"
David: "thomas the tank engine pulls 3 freight cars"

Yesterday was our first real conversation:
Me: "David, how was your day?
David: "Great!"
Me: "David, I love you"
David: "I love you too"

David: "Dad, where are you?"
Me: "I am at work"
David: "Dad, Why are you always at work?"

Ah, out of the mouths of babes.
Question to myself - "Yeh, why am I always at work?"