In and out of love in a parking lot

I was wondering about this in the shower for some reason: Do marriages fall apart more nowadays due to additional burdens or responsibilities that we've taken up in today's society or we've romanticized the idea of love so much in movies and books that we've built a different level of expectation for love now?

It could be the latter, I suppose.

Ever since we were little, we've been exposed to a fair amount of fairy tales, or love stories that end well, whether it be through movies or books or any other method of fabricated ideas. I don't think we've been taught well or exposed enough to the struggles of these stories, so we haven't picked up on many of the skills of how to deal with stressful times, or how to communicate, how to love in bad times and in good etc. Of course the argument here could be that we don't willingly expose ourselves enough or allow ourselves to see these struggle mechanisms, which is valid because living through them can teach us a far better lesson than witnessing what others go through.

So, going with the idea that we haven't picked up on many of the skills, do you think that maybe our idea of love has been slighted, just a tad? That because of our lack of skills, we've given up on love and marriage far more easily than we should have? Or if you flip the coin to the other side, that because we've been "over-exposed" to the fairytale romance, we've altered the true concept of love and anything that has fallen short of that concept, we have the tendency to give up more easily?