It's all about science and human nature my friend. Men are pre-programmed to have an emotional response to physical beauty.
It has been well documented and proven by science. Women do not have the same response to a good looking man and usually have a hard time understanding why we have to look. You can't beat yourself senseless over your biological programming.
You have to accept it and move on. It will never stop, no matter which super model you are married to....It's the natural urge to procreate because of their physical characteristics.
What makes a real man is the ability to recognize, admire and then leave it alone. And that part is the hardest.