Do you act any less wildly when you fall in love at 58 compared to falling in love at 18?

I’m using this scenario to get to a greater understanding of the impact of love on people’s behavior. A man in his late fifties has fallen in love with someone who is pretty much his age. He writes her love poetry all the time and displays many others symptoms of being in love. He is, it seems, acting like an 18 year old.

What I want to know is what you think about the impact of love, especially on older people. Is it unusual that people of this age pursue their affair with the vigor of youth?

Suppose this affair has a disruptive effect on others, and they still choose to follow the love. Maybe they would have to move or change jobs or otherwise leave a network of people they have been a part of for years. What could they be thinking? Why would they choose this love over their responsibilities to others they care for?