Boyfriends mom hates me

don’t know what I did but my boyfriends sisters don’t like me and made stuff up about me and told their mom so now his mom hates me. She went off on me two nights ago and was saying how I’m abusive and I’m using him (not to mention that this was in front of everyone). He makes me so happy and I’ve suffered from depression way too long to give this man up. He tells me how much he loves me alllllllll day long and how he can’t live without me. I know that we belong together and that we both deserve each other. We treat each other so well it’s the healthiest relationship I’ve been in ever. Even out of friendships! Basically, when everything went down two nights ago, my boyfriend didn’t defend me. I was being nothing but polite and respectful to his mother even though she wasn’t doing the same to me. I kept my calm even though I did defend myself. I wasn’t going to let her say all of those things about me and not let her know what’s actually up. Her daughters are all about drama. So is their mother. They’re so immature it is baffling! They really don’t have anything else better to do than to make stuff up about me and spread it around to get everyone to hate me?? Like seriously? I’ve been through way too much I don’t need anything else like this on top of what I go through on a daily basis. I have no one else to talk to so I thought I’d rant on here :/