I must agree with that. Several of my friends' DILs or SILs hooked up with someone online within a year of two of the big expensive wedding.
We have one in our family who kicked her husband of nearly 50 years to the curb over an out-and-out grifter she "met" online. The husband literally died from the shock, and she moved that bassterd into the marital house about ten minutes after the funeral. Her bringing a fox into the henhouse destroyed the unity of the extended Christian family (consisting of ten to twenty other married couples, depending on how many in-law couples show up at family events). Many tears have been shed by everyone but the happy couple. Some tolerate him being at family gatherings, and others are plain disgusted even being around him. Or her, either. I'm one of the latter.
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