Why is a man more likely to confess to cheating than a woman?

Out of the few cases I've heard about a cheater that comes clean without getting caught, is usually a man confessing. Meanwhile the woman usually wants to keep that a secret forever and rarely confesses unless someone else finds out and she's given no option.

Why is that? I know of two other men that confessed. Even my own brother once came clean to a past ex girlfriend. No one caught him, no one blackmailed him. He simply admitted it and obviously got dumped. He didn't fight to win her back. He learned from it.

Why is a man more likely to confess to cheating than a woman?
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