Every now and then, you'll meet the stereotypical doctor's kids. I think it's more the exception than the rule, but it illustrates my point well. These are kids that are simply starved for emotion. And it's no terrible surprise that this happens.
Throughout the whole process of learning and practicing medicine, we develop habits and strategies to deal with the horrors surrounding us. Some people become very emotionally labile, crying one minute then laughing the next, but most become emotionally distant, detaching themselves from patients. We learn to keep the world at an arm's length. And sometimes, with some people, it spills into the home, and either we've got nothing left to give, or have spent so long keeping everyone out that it's hard to let anyone in.
And so you'll meet some doctor's kids one day, and they'll be emotional vacuums, leeching emotional content from whomever is nearby. And what do you expect when parental affection is so sparse and emotional generosity is so unrewarded. It's easy to become a one way valve. It's not the rule, but it happens.
And the reason I mention this is that when your business is taking care of the sick and suffering, it is very hard to be emotionally available for the people in your life, because you've learned so very well how to suppress it all. And worse yet, you've learned how to fake it. You've learned how to put on the show, and 'be there' for someone without ever risking your emotional being.
And that's part of being a doctor too. And the best of us learn how to be a human again when we leave the hospital. And the worst of us are divorced 3 times and buy sports cars to make life seem more bearable.