He was using me and I exposed him, hurt me?

This guy was using me while he was in an open relationship with his ex (he did not want to get close to me) so I told his parents (they are my relatives), he wanted to seek revenge but it backfired lol. He got a great life lesson. Do you think he will ever regret and come back one day?
He was using me and I exposed him, hurt me?
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