Marriage is not always easy. Spouses fight. Here is a dua to resolve fights between spouses. This is recited by Saad Al Qureshi.

Oh Allah, reconcile us and created the bond of love (harmony) between our hearts. Oh! The Merciful and Compassionate.

اللهم أصلح ذات بيننا وألف بين قلوبنا يا ارحم الراحمين