G.T.
I'm assuming you prayed quite often for an escape from such a horrible marriage and God answered it by putting this new, wonderful husband into your life. God doesnt want a woman in an abusive relationship, husbands and wives are to treat each other as Kings and Queens. If you have asked him to forgive you for the way you went about it, thanked him for opening that door of escape for you, and don't subscribe to adultry forever more, the only sin you are now guilty of is not believing that the Lord HAS already forgiven you :)
Peace