The Romans - 30:21 And of His signs is that He has created for you mates from your kind, that you may find comfort and peace with them, and He has put between you the love of friendship and mercy. In this are signs for a people who reflect.
Related:
The Women/4:20 If you want to leave your present wife and marry another wife, do not take anything back from her, even if you have given a large sum to the first one. Will you take it back by fraud and slander and sin?
The Women/4:21 How can you take it back when you were once each other´s closest friends and they took a firm promise from you?