> Please explain: why does "19-year old beauty" need to "glimmer through" to sustain a relationship when one is "old and annoyed?"
They've been so long they know each other's faults and are willing to live with them. You've been with someone that at every major crossroad of their life. That's not something you get when you start dating in 38th.
Speaking from my own experience, it doesn’t necessarily matter. All that matters is what you each bring to the relationship every day. It can be a blessing to meet later in life, after both of you have worked on your issues.
They've been so long they know each other's faults and are willing to live with them. You've been with someone that at every major crossroad of their life. That's not something you get when you start dating in 38th.