would you go to the wedding?

one of my sisters wedding is coming up, my parents and other sister invited us, however the bride sis, did not. anyways, my husband doesnt like them, nor do they like him. but they always make him feel welcomed and a part of fam. my husband doesnt want to go still, cause he doesnt like them. but he said its up to me. should i not go for him? or go and support my sis? even if she didnt invite me. he will have to come either way if i do go.