What should I do?

I want to have a wedding because it’s what I dreamed about forever but what’s the point in having a wedding when I don’t know who to invite? My family and friends are against my relationship for no reason. They barely got to know my fiancé and they don’t even try. He knows that no one accepts him for no reason and he put himself out there to get to know my family and after they treated him like he had a infectious disease he said I’m not going back. I don’t blame him because he tried and that’s all that matters to me