For your sake I hope it stays that way also. Just be careful and watch him. Take mental notes of his behavior toward you. If he truly does have a desire to change and loves you he will continue to work hard on becoming a better person. Everyone has flaws and no one is perfect. Different circumstances such as how we are raised can contribute to how we treat others as adults. Be patient and loving and watch him from afar. If you see some of the bad behaviors appear again, try counseling and then maybe separation. He needs to put you first. Always remember that.