Why do certain men take back a woman that cheated?

My own father took back my mother long ago in 1992. She was just his girlfriend of 3 years at the time. She got caught with his former best friend in his own house. The friend was forever blocked. He still married her in 1996. Sure he got back at her (revenge affair) in 2000 but confessed out of guilt. They're still together and apparently have long reconciled by now.

Both of my parents were attractive back in the days. Yeah he was cute. My father didn't seem like the guy that had issues in the dating world nor talking to people. Most men would've dumped her for that.

There was a question about why women take back cheaters. Now I'm wondering why do certain men (like my dad) take back a woman that cheated? Any logical explanation?

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I got that information from his private journal. I wasn't suppose to read his stuff but curiosity got the best of me.
Why do certain men take back a woman that cheated?
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