We both cheated but is it strange I don't feel any regret?

For 6 months I've been trying to communicate our issues, things making me unhappy and how it's better we break-up, that I wanted out. He kept pleading me to continue the relationship and even said he would overdose if I left. My resentment began.

Fast-forward to last Saturday:

I caught him texting the other girl and it was them cheating for 2 months. This obviously led to an argument and him pleading for another chance. At this point I blew up and said these things "well you know what, just like you had your fun so did I just last week. I only regret not having sex with him though, just him doing oral on me." Then for some reason I just started laughing. I found everything funny.

I still don't regret it. Is this weird? I really don't feel bad. I was going to confess anyway. A bunch of consecutive birthdays in the family and work stress delayed that a bit.

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+1 y
No I don't love him. I hated how he made me believe he would overdose if I ever left.
We both cheated but is it strange I don't feel any regret?
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