Marriage.com said on
When two completely separate and unique individuals decide to come together in marriage, certain differences are inevitable. However, these differences can either be seen as stepping stones on the exciting journey of getting to know one another while travelling the road of life together, or they can be seen as obstacles and problems. Marriage problems between a couple can develop when each one wants the other to be the same as they are and to conform to their wants and desires. Basically this is selfishness and possessiveness. If one or both partners is too proud to be able to say “I’m sorry, I was wrong” then there will be serious problems in the marriage.