Guys, what is the best to make him regret?

I just discovered that my boyfriend was cheating on me. I don’t speak to him anymore. I’m very upset and angry. I will not forgive him and go back with him.

I just want to know the best way to make him regret his actions?

Also, if you have stories where you experienced regretting losing your girl. I want to hear all of your stories in the comments, if you want to share, of course. (I’m trying to find comfort)
Guys, what is the best to make him regret?
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