I wasn't around 60-70 years ago, but that is about when my grandparents got married (the 50's). One pair of them divorced in the 70's and the other pair stayed

I wasn't around 60-70 years ago, but that is about when my grandparents got married (the 50's). One pair of them divorced in the 70's and the other pair stayed married until my grandmother's death in 2008. I don't think they really liked each other for the last 20-30 years before that though - they rarely spoke to each other. If you're getting your perception of relationships from the popular media of that time, then I'd just say that you should probably look at the media's current relationship ideals and see how well they match up to reality.