not all Haitian men cheat for the same reason that not all men from different cultures do not. the problem is that if you are raised, as many Haitians are, to believe that cheating is okay because all the men in your family cheated and the women they were with accepted it, then why would you think differently.
However if you are raised to believe that a relationship is something to be cherished, and just because someone else looks good doesn't mean you should go home with them that night and you will not.