Some of them seem a bit odd, but overall they never have bothered me. I'm glad the two of them found someone they enjoy being around and wish.
As I write this I'm kind of laughing remembering a big age relationship difference between a former neighbor and his wife. I don't know how big the age difference was but they were obviously a generation apart. the wife was my age, born the same years, I remember and he would have been my parents age.
He got around apparently and was dating a number of women before getting married again. When I moved to my current home, before moving in I hired two ladies to decorate the place. While the two of them were working together they got to talking about their boyfriend. To their surprise they discovered he lived a few houses down from my place! Basically they found out they were dating the same guy. I didn't witness the discovery but was told they were not happy about it, understandably. Thankfully my neighbors house didn't mysterious burn down that night. He did move away from the area though, a 1000 miles away not long after getting married.