Worse, if we are in a deeply emotional experience, we are called irrational, crazy, menstrual, bitchy and worse. Second, if he has emotions, he has to stuff them if he wants to be loved.
The effect is to deny us that which makes us human. Once you become aware of it, you will see it between parents and even very small children, between friends, at the dinner table, at parties and at work. Third, if he wants to be tough and strong like Dad, he can’t allow himself to feel anything. Assuming the lesson has been repeated over and over, what kind of relationship training does that young man have for dealing with emotionality of his first relationships with a girl None, of course.
Your partner avoiding the "work" in the relationship is like wanting to have his cake and eat it, too.
Anywhere you look for relationship advice, you'll hear that communication is the key to a successful relationship. And this all goes without saying that not caring about your feelings is incredibly cold and callous. We do have control over our emotions to some extent, but always claiming you're too sensitive every time you get upset just invalidates any unhappiness you might have.
If you have led a normal life, this has happened to you thousands of times. As human beings, we are 98% emotional and 2% rational.