Half of all marriages in the USA end in divorce. It can cost a lot of money in legal fees when child custody and access are involved and there's any contenti

Half of all marriages in the USA end in divorce. It can cost a lot of money in legal fees when child custody and access are involved and there's any contentiousness (say $50k normally, upwards of $250,000 for a real fight). So yes, if the relationship deteriorates sufficiently, it is "that easy". Vows don't mean much anymore. People marry with very limited information. If they truly had to vow, they'd wait a lot longer (many years!) before deciding. It is amazing how two people that once vowed to live with each other can become mortal enemies filled with rage, but it's surprisingly common.