I slapped my Fiancée many times after finding out he is cheating, is this wrong?

So recently I found out my Fiancée is currently cheating on me and denied it at first by saying that that was his ex trying to ruin our relationship but then the girl sent me all to their recent message exchanges, so I confronted him and I don't remember how many times I slapped him both side of his face and felt guilty afterwards. Was I wrong to do that to him?

I slapped my Fiancée many times after finding out he is cheating, is this wrong?
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