Prophet Muhammad PBUH said:
The most hateful permissible thing (al-Halal) in the sight of Allah is divorce. [Abu Dawud, Hadith 1863, Ibn Majah, Hadith 2008 and this hadith is sahih]
The spouses should avoid divorce as much as possible. If they have difficulties and problems they should try to work out their differences and seek help from their relatives, friends or professional counselors. However, if the differences are irreconcilable then divorce is permissible, but it should be done in a decent manner.
A husband must be patient with his wife if he sees something in her that he disapproves and dislikes. He should recognize that he is dealing with a human being with natural imperfections, and he should balance her good qualities with her failings.
Prophet Muhammad PBUH said:
Let a believing man not dislike a believing woman. If something in her is displeasing to him, another trait may be pleasing.
And Allah Almighty says:
...And consort with them in kindness, for if you dislike them, it may be that you dislike something in which Allah has placed much good. [Quran 4: 19]
While on the one hand, Islam requires the husband to be tolerant and patient with what he dislikes in his wife, on the other hand, it commands the wife to try to please her husband as far as her ability and charm allows, and warns her not to let a night pass during which her husband remains angry with her. A hadith states:
There are three (persons) whose prayer does not rise even a single span above their heads: a man leading a congregational prayer while the people hate him, a woman passing the night while her husband is angry with her, and two quarreling brothers.[Reported by Ibn Majah and by Ibn Hibban in his Sahih]
I don't disagree with what sister has posted but I just want to make sure that divorce should be something which we use as our last resort.
Divorce, however is decreed by God for the believers in exceptional circumstances when all attempts of resolving disputes between the spouses are failing. There have been a lot of abuse and violation of God's laws when it comes to divorce. There are also a lot of misconceptions about the women's rights before, during and after the emotional turmoil of divorce. I am giving references below for verses in Quran on this topic and hope these will help to understand laws of Divorce in Sharia:
Read following verses from Quran:
Chapter 2: verses 226-241
Chapter 4: Verses 20-21 & 35
Chapter 33: 28-29, 37, 49, 52
Chapter 58: 2
Chapter 60: 10
Chapter 65: Verses 1-8
Chapter 66: 6
Allah knows the best!