Apparently you have come out to your wife. The children in a family always expect the truth from the parents and can tell every time when you are hiding something. Don't hide things from them because someone else will eventually reveal your secrets to them. Then it will be difficult to explain that you are not ashamed of something. Get it over with. you may have some difficulty at first, but the time will come when they will accept who you are and love you for having them in the family.
Rhanda