I also have a fond memories of an older (him in late 50ies, her in mid/late 40ies) couple me and my so met while traveling. Not only did their life seem great, but they were so different than most couples.

I notice some type of bitterness and boredom shapes a relationship though having children - it almost always imbalances a couple and builds resentment. One or both partners always does those little put downs, their worlds seem vaguely related apart from domestic issues, there's always that "cute" (haha, no) bickering with sinister undertones...

These two though, they were like a dream team. Total partners, best buddies. Yeah, they teased each other but for laughs. And there was so much passion and love between them, it was more like they were trying to keep it chill, but he would sometimes just lose it and go on a rant about how awesome she is. And she would crack him up.

They just travel, go out, drink, try different foods, no wonder both look great and much younger than they are.

Another huge difference I noticed between them and breeder couples is that for breeders, this age is pretty much it and all the future "excitement" and plans is about children. As for themselves they are just looking into retirement and no longer having to care for children.

These two though, they had plans and were so mutually encouraging. She will get another masters, he is super proud. He will get a year abroad through his work, they are both excited. It's just like listening to 20 something year olds filled with future plans but minus the anxiety and financial and professional uncertainty.

Best couple I ever met, and together for about 20 years.