my fiance in strongly commited to his family after four years of being with me. This causes problems to me because he leaves me to be with them, he rushes whenever they want him to and leaves me alone, he does not want to leave the town where his parents live
You do not only marry a person, you get his family as well. If you do not like them, you will have problems.
They will finally die and leave you with your husband, but it might take a very long time. If you cannot accept his close relation with his parents, you need another man, that is not that close to his family. I do not think you can change your fiance.