Why is it that if angered enough, I can confess to anything regardless of the consequences?

I've done this 3 times in my life without any regrets. The last one could've easily ruined my reputation but I didn't care for that either. The anger and hatred had reached a boiling point that I confessed in their face without a care.

For instance I once dated someone my family and friends clearly didn't like. I ignored the signs until I saw them. He would waste money on gambling and alcohol; a bunch of other terrible traits. Instead of breaking up, I did something stupid. I got angry enough that I told him in his face, adding the ''yeah and I don't regret it, you deserved it''.

Usually we don't tend to confess much and are better than men in keeping secret but once angered enough, even my risk of ruining my reputation is overrided and I don't care by then. Why?

Why is it that if angered enough, I can confess to anything regardless of the consequences?
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