Although Shari'ah Law permits divorce, in the Hadith, Abdullah ibn Umar reported that the Prophet Muhammad said, The most detestable of lawful things before Allah is divorce. So although divorce is allowed, Muslims should try to avoid it, if possible.
This means that many Muslims who experience marital difficulties will try to resolve their issues. It is also because they have made a contract before God, called a nikah, to remain together for life and divorce would mean breaking that contract.