I hate my family they don’t like my husband

My mom and grandpa and grandma don’t like my husband my grandma is a bitch for real she fakes with people that she is nice and sometimes she is nice but says that my husband will cheat on me she is single she is separated from my grandpa so I don’t know if she is jealous. She says all men are the same and cheat and today I fought with my mom because I told her first is my man and she said I hope you don’t regret it and that that man doesn’t cheat on you you will come crying back to us I told never will I come back running to you guys. Even my grandma says he will find another women I know he is not the type to cheat I just know.