First of all, have you and your fiance spoken to his parents about how you feel. Have they told "YOU" why it is they dislike you. And if so, just let them know that even though they dis-approve of you two getting married, You want them to be a part of the wedding as all parent should be, but they need to understand that their son loves you enough to marry you and they should respect that. If they are still unable, inform them that you will be there when they change their minds. It could be a hard process, but letting them know that you are not going to let them break up your wedding could make them take a step back and re-evaluate their doings. Believe me I know, my in-law were the same way. My husband is from Africa and his family was TOTALLY against him marrying me. But after some time, they understood that they could no longer control what their son does and backed off. I am now happy to call them Mom and Dad.
