Family in law issues

Broke up with my fiancé over a year ago. Just recently started talking again in secrecy. My mom and sister know. My mom is really not happy about it at all my sister just wants me to be careful but it’s my life is what she says. Do any of you have a family who does not like your husbands family in particular your husbands mother? I don’t like her either. She doesn’t like me or my family. Can this ever work? I miss him but I just don’t know how this will ever work. How do you guys handle family drama?? Just want some advice! Thank you