As you know opposite-sex attraction is a God given natural instinct in human beings. After reaching puberty, boys and girls are attracted to each other. Because of this need and the natural instinct is that in Islam, marriage is ordered. The husband and wife build a structure upon love, comfort and delight and they promise to each other that this relationship will last to the end of their life. But what is needed to fulfill this promise?
According to Islam, love and mercy are two main factors for the strength of marriage building and the relationship between husband and wife.
The Holy Quran says: “And among His signs is that He created for you mates from among yourselves that ye may dwell in tranquility with them. And he has put love and mercy between your (hearts): Verily in that are Signs for those who reflect.” (3:21)
In fact, love and mercy constitute the glue and cement for the structure of a family. A life without love and mercy is a shaky life, ready to break apart. But if the life of a couple is filled with tranquility, is based on love, and is accompanied by mercy, it is firmly established.
Remember that according Holy Quran, putting love and mercy between the hearts of couple will be done by God. So, always pray for them.