Adultery is a crime in this country. If you report, both will be deported. Do you want your husband will be deported with that women? Why your husband is more happy with that women? Think about it. Try to convince your husband and guide him to the right direction. Tell him about the kids and their future. Try to find the problems between you and your husband. 'Love' is powerful. Love is the only way to make him a good husband and father. Good luck!