The most common things that can lead to divorce include:
Infidelity: having extra marital affairs has been ranked as one of the most common things to cause divorce. It severely damages marriages; it creates feelings of betrayal for the other partner, the depth of the betrayal and emotional pain often leads to divorce after infidelity.
Money: having different financial goals and spending habits affect marriages. If one partner is earning much more than the other, it can lead to power struggle which can strain a marriage to a point of breaking.
Poor communication: communication is the bed rock of every relationship, a marriage with poor communication will quickly lead to resentment and frustration for both partners, impacting all aspect of a marriage.
Other things that often lead to divorce are; having unrealistic expectations, lack of intimacy, abuse, not being prepared for marriage and frequent arguments.