I believe he/she can Change
If the result is "Yes" to more than four questions and you still believe that he can be changed so that your relationship can be bettered,then you have taken one of the greatest decision and Kudos to you because its not wise to take hasty decisions about a relationship.No one is perfect but people can achieve perfection,and if you are ready to help your partner changing,then i tell you.You both will rock in the society and become an example to the people having problems in their relationship and you will be regarded as one of the "BEST COUPLE ON THE EARTH".