Divorce is a rough thing to go through.
Yes it is, reasons for he divorce vary though, from sexual incompatibility, or lack of independence. 
That's interesting that you say lack of independence.  Why?
One or both spouses could have personality clashes. one or the other might want to hang out with just their friends more than the other partner. 
I see.  I would say infidelity is a big problem as well.
I would think so as well. Most people want exclusivity and these expectations are not always met. 
I also think communication (or rather the lack of thereof) is also an issue leading to divorce.
Domestic violence and sexual abuse are also other things that can lead to divorce. 
Sadly it is.  It often goes unnoticed.
Rape statistics
Statistics on rape and other sexual assaults are commonly available in industrialized countries, and are becoming more common throughout the world. Inconsistent definitions of rape, different rates of reporting, recording, prosecution and conviction for rape create controversial statistical disparities, and lead to accusations that many rape statistics are unreliable or misleading. In some jurisdictions, male-female rape is the only form of rape counted in the statistics. Countries may not define forced sex on a spouse as "rape". Rape is a severely under-
spouses informally stop cohabiting). Reasons for divorce vary, from sexual incompatibility or lack of independence for one or both spouses to a personality clash.
The only countries that do not allow divorce are the Philippines, the Vatican City and the British Crown Dependency of Sark. In the Philippines, divorce for non-Muslim Filipinos is not legal unless the husband or wife is an alien and satisfies certain conditions. The Vatican City is an ecclesiastical state, which has no procedure for divorce. Countries that have relatively recently legalized divorce