Wife dedicating her time to the co-wife

Question 14: My wife makes me angry and we fight a lot. This is why I refuse to share her bed. One day I informed her that I am not satisfied with her actions and she said that she would forgive me for marrying another wife in return for a monthly sum. I agreed and kept supporting her financially. She lives in a separate house with our children and I visit them regularly. If I stay with her, we fight and thus I do not stay there. I live now with my second wife and we have children. Am I to be blamed for this? I want to do justice between them but I can not. Please advise! May Allaah benefit Muslims with your knowledge!

Answer: It is permissible for a woman to give up her night to her co-wife or to her husband as this is her right. It was authentically reported that the mother of believers Sawdah (may Allaah be pleased with her) gave up her (turn) day and night to the mother of believers `Aa’ishah (may Allaah be pleased with her). However, the husband should do justice between them, if the granter changes her mind... read more here.