Is the 7-year itch for real?

i've heard this many times about marriage --when, after a lengthy period of time, your significant other wanders off. either to rekindle his or her affair with the singles bar scene, have an actual affair, or just lose interest in his or her wife or husband. this can be temporary or permanent. but does this... show more i've heard this many times about marriage --when, after a lengthy period of time, your significant other wanders off. either to rekindle his or her affair with the singles bar scene, have an actual affair, or just lose interest in his or her wife or husband. this can be temporary or permanent.
but does this happen generally? has this happened to you?
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