TXNVSUE2023:
Welcome to the forum. I agree with a lot of the posts here.
With regard to somebody ‘committing immorality’ before marriage and then confessing later, you are not the first. I’m sure there were others that I suspected but they didn’t get disfellowshipped. I think it all has to do with the body of elders. This is unfair to you. I also believe it’s ridiculous since you did get married.
Nobody can stop you if you want to go back, but what others have said is true: they will have a bias against you. Sadly, because there is No confidentiality in the JW religion, some people in the congregation will know all about your intimate personal business!