well, when I dwell in my memory, I realize all the good things that could be lost at any moment and become more appreciative of the things given to me. I do not let my s/o knows my thoughts fearing she'd use it to her advantage when she knows I'm vulnerable.
I'm not sure I understand you, but what I'm saying is that if my exgf knows that I'm a man of truth and never break my promises, then she'd regret not having the chance to have me.
When I make someone happy it does make me happy. I'm just sad why it's not the person who's been praying to be loved by me.