I am in love with another woman who is not my Wife, but I don't want to spoil my child's life by going for a divorce. What should I do?

please do not continue down this dangerous road of ruining your family. Do go for marriage Counselling . If there are any problems between u n your Wife, sort it out . I'm sure u love your Wife that is why u marry her. Honour your marriage vow n keep your heart only for your Wife. If your Wife is the one who has eyes for other guy , I'm sure u won't feel good too, so channel your energy to try to work out your marriage first n stay away from the temptation of giving your heart away to someone else . Trust me , it is not worth it at all!