"Zee, just because you once had me, and lost me doesn't mean it's going to happen again. You're young and handsome and alive, so you can't love me forever and waste your life."
"What do you mean? I don't consider loving you as a waste of my life, I can never love anyone else. You're always in my heart. Not a day goes by that I don't think of you, so how can I do that to her when I know I have someone else in my heart?"
In all sincerity, how could he dare love another when he held someone else in his heart? What kind of selfishness would push him to embrace Luna and pretend all his heart belonged to her when deep down he held his dead wife in his heart.
That would be unfair and cruel to Luna. Why wasn't anyone seeing things the way he was seeing things?
"Just because you think of me everyday doesn't mean I'm still the one who has your heart." For the life of him he could not even begin to try to understand what those words meant.