In a way, this story reminds me of the anime Rin: Daughters of Mnemosyne (yes, with lesbians). It has a similar concept, surrounding how immortality could be a blessing or a curse to those who use it. Some people KNOW but don't UNDERSTAND the pain, the stress, and the risks of being an ever-last. It's true that you get to live out years into the future you would probably never get to see if you were a mortal but that comes with a cost in not joining loved ones in the afterlife. Everything except death will leave you in your existence.
The scenario would be: would I take the opportunity to be immortal and become a vampire? Probably so probably not. That's completely up to debate to that person with their standards and morals