Why would a wife tolerate her husband's affair for years and not ever say anything to him?

Yet threatens the mistress secretly on social media. Examples are you're stupid quotes, being lonely with someone is worse than being lonely alone quotes, Push me further I'll slap you right off google. Keeping my mouth shut is my biggest accomplishent in life. And a bunch of other stuff. Yet not once confronted her husband.

Strategy? Money?

The other reasons such as kids, financial dependence, fear all do not coincide with keeping quiet. You can always threaten ur husband to dump the mistress.

No I'm NOT the side piece.

Updates
9 mo
Oh and acts like everything is normal.
Why would a wife tolerate her husband's affair for years and not ever say anything to him?
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