Why should Spore be any different than other developing nations, where divorce is common
The only difference is that in Spore there are many naive couples with alot of false expectations, encouraged by our state controlled media. Some are even clueless about sex
At least in other countries the young have had a chance to fool around & experiment. As a result they have a better idea of what they are looking for in a mate.
Marriage breakup do occure & in Spore its probably worse as there's plenty of immature females & males who have no idea what they are looking for except the 5Cs.