My friend told me: His son is very likely to be his ex-wife’s former boyfriend’s.

One time, he happened to overhear his wife sending a voice message, in which she told their son to call the person on the phone “Dad.”
In that moment, his heart skipped a beat—everything clicked in his mind.
He didn’t want to go through a paternity test. He also knew the ex-boyfriend; he could count him as a friend,
who had been taking care of his business for a while, and often invited him to play cards—every time, he ended up losing to him.
Afterward, my friend thought it over and decided to forget about it.
He’s spending someone else’s money, sleeping with someone else’s wife, and raising someone else’s son…
In a person’s life, once you close your eyes, everything is just gone.