You really can't give what you don't have especially when it comes to emotional matters. People who bottle up their feelings and allow themselves to go through life numb are really unable to truly share with another.
Some kind of way I have been able to hold on to the essence of who I am. As awful as my childhood was, as treacherous as my marriage got, I never lost sight of me. This is why I am healthy and whole today. My mother couldn't scold, or cajole the me out of me. My husband couldn't beat, couldn't make me feel bad enough about myself to lose sight of who I was and he couldn't get me to deny who I saw him to be.
I have been able to give because I have always had the greatest love of all, love of self.