Oh no I blame him 100% it was all him and not me
. I think it was a week or so
A week is such a short space of time, especially after discovering something as awful as your partner cheating. You probably would have still been in shock with both your heart and mind left reeling from it all.
It's perfectly okay if now, a few months down the line you're not so sure if you done the right thing by taking him back.
Did he beg for another chance? Personally, I think he should have been made sweat for bit after what he done. It sounds like he's gotten away with it a little too easy without having to actually realise how much he's messed up, or what's even at stake because of his selfish actions.
Be careful. After how easy he's had it and how quickly you decided to give him another chance, he may do it again because he will assume you will forgive him just as easy. I know you've said this is his last chance, but he may not see it that way because it's not like he had to work hard to win you back.
I'm not saying you are, but a guy might just look at it as you're a pushover which means he can do what he wants. He lost nothing from his selfish actions, but he did get to have some cheeky fun with his bit on the side and now he's still living it up with his wife and kids in the family home probably feeling like the king he thinks he is.
Sometimes, people need to lose something before they realise what it meant to them. He needs to see that you will not tolerate his betrayal. That cheating is absolutely not okay.