This question bothers many women. They can not understand what they did wrong, that her husband cheats on her. She prefers another woman. What are the reasons for this?
The second reason is the attachment of a man to one woman, and the desire to possess another. He loves his wife or girlfriend madly, but can not refuse to "not try" another.
The third reason is the lack of an intimate life with his wife or girlfriend or bad sex. He can not satisfy himself, so he decides to find her on the side with another woman.
The last cause of betrayal is an accidental connection, at a time. This often happens after a heavily drunk alcohol and loss of control over yourself at some party. Often such men blame themselves on the one with which he had sex. He is justified by the fact that she threw herself on or sucked him and he could not resist or did not have the strength.