It's embarrassing to say all this, but I think it's a reality for a lot of us. So as soon as someone enters a religious community, there is often an intense culture shock or existential crisis of expectations. (Admittedly, some of this is due to the unfortunate bourgeois and decadent state of much of mainstream religious life here in the United States.) Sometimes this shock at the real vs. expected religious life is so bad that a new brother will leave within 24 hours.
I went through this, and continue to do so on some level. And I don't think I'm an unusual case in this regard. I once asked a spiritual director about it, complaining that the spiritual trials and crosses of my religious life were entirely other than those I expected to have. He told me that this was, in fact, an expression of God's mercy. If we were allowed the carry the crosses we imagine ourselves bearing, or would like to carry, it would be too much an occasion for vainglory. So, in his mercy, God gives us crosses that we would not want, and are unglamorous and not even interesting.
I imagine that in our world of sitcom families and so-called "romantic comedies," a lot of this is applicable, mutatis mutandis, to married people as well.
I'm thinking about this stuff this morning because today is the funeral of my first vocation director, the friar who handled my application for my first go at religious life, when I spent 18 months in the formation program of the Friars of the Leonine Union (the OFM.)