If you have a bad relationship with your immediate family, fix it now. Unless you’ve been through some unimaginable circumstances like child abuse, molestation, etc., the minor tifs you have with your lineage should be reconciled. A lot of men are family oriented and knowing the girl they want to settle down with is always on the outs with her parents or siblings are red lights for guys.
Try talking to him about your situations and getting his advice on how to handle it. He’ll appreciate your efforts to include him as well as fixing the problem.