25 years ago I belonged to a singles group in London. A big group of us went to a house party one Christmas and we had a whale of a time. There was one man with whom I got on particularly well but we didn’t swap details. A few weeks later I got a call from the group leader asking if he could give him my phone number.
Six weeks later we got engaged. 
He was 48 and I was 44.
25 years later we are still engaged and living in happy retirement in the country.