A difference of time

“Why do you even bother persisting with this?” He said heatedly, “You know how fleeting their lives are to us and before you even realize it she will have passed away from old age while you have barely aged a year. So please, I implore you, give up this foolish notion and leave her.”
She looked down at her feet before she balled her hands into fists and stared at him.
“Then let it remain that!” She replied with tears brimming in her eyes, “Let it be a fleeting moment, a mere drip in the stream of time! It will still be a moment I will cherish forever and ever until my last breath has been taken. And I will gladly do it all over again if I could! I absolutely refuse to remain cold and aloof like so many of us when there is so much one can do and feel and experience.”
He sighed in abject disappointment and turned his back to her.
“Very well, I see you have made your choice about which path you to travel down on, but beware it is a path that will end in grief.”
“Then I will handle that when it arrives.” She said determinedly while staring at his back.
“I wish you goodbye sister, I hope our next meeting are on better terms.”
“Goodbye brother.”
With a flash of arcane energies he was gone and she sank to her knees as she buried her face in her hands and wept.