It's been proven that the more somebody spends on a wedding celebration the higher the risk of divorce, what are your theories about why that is so?

I have two theories about it

One is that they believe the relationship is maintained by their spouses loyalty and not by their effort and sacrifice in the relationship, so that they take a non participatory approach to keeping their lover interested in them

Or maybe it's because they want they are unjustly squandering the time of others by making them take time and money out of their busy schedules to celebrate them and only them in a wedding celebration

Another reason could be that people who have big weddings are fixated on appearance and vanity, and appearance or vanity driven people might have a higher risk of divorce due to conflict and fighting in the relationship out of their pride, greed and the unreasonable demands they impose on others to fulfill their desire for praise and social esteem.

It's been proven that the more somebody spends on a wedding celebration the higher the risk of divorce, what are your theories about why that is so?
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