There are undoubtedly some people for whom the answers are yes and yes. Then there are others, some of whom are perfectly healthy and well-adjusted but just not cut out for spending their whole lives with one other person, others of whom are unhealthy (or just plain jerks) in ways that make it hard and/or unwise for them to sustain a long-term relationship.
There are many factors, but one of them might be unrealistic or conflicting expectations. Couples ought to discuss their expectations before getting married.
I thought I’d copy my post from the “polygamy” thread:
Dang, I didn’t see this thread before I started the “More On Marriage.” Anyhoo, I can see why being married to more than one person could create some sticky issues. I don’t, however, see why two people can’t come together as a married couple-- partners for life when it comes to the big stuff, like, raising a family, owning a home, taking care of each other in old age, etc.–but still be able to have the freedom to love whomever they wish, to pursue emotional connections with others, to (responsibly) yield to sexual desires with others. Y’know…“free love” and all that. Maybe prostitution would go away; who knows?