But we have this treasure in earthen vessels, that the excellency of the power may be of God, and not of us.
-2 Corinthians 4:7, KJV
Having regrets is not the same…
…as deserving or causing the abuse of being cheated on!
You do not have to be a perfect husband or perfect wife to expect fidelity and a spouse without a secret sexual double life. Nothing justifies infidelity abuse!
Now, you may have regrets about your marriage. Perhaps you wished you had behaved differently in some situations? You see now that you lacked maturity in some matters. It is okay to see your imperfections and your own sinfulness.
Yet that does not mean you deserved the abuse!
We hopefully are always growing from glory to glory. God in His kindness is constantly working to free us from our sinfulness.
That said, I would caution having this conversation about your marriage regrets with your Cheater. They probably will take it as justification for their infidelity. It is not.