MIL BS

So my mother in law does nothing but talk shit about my hubby and myself whenever she sees us or is with one of her friends or at the chiropractor seeing my chiropractor! She flat out told us she wants her son, my husband to go through all the struggles she did! What kind of mother wants that! She used to be a party girl, drug addict, and alcoholic! My husband is no where near that! She thinks she’s the best damn parent and knows everything when she didn’t even raise her son for the first couple years or so! His grandma did! She told us we are dumb and make no sense why we are already putting baby stuff together at 16 weeks. I am having twins and we are so excited about it. We already have a daughter and son and I didn’t put their stuff up so early but with twins I didn’t want our room taken over my so many boxes and I want to be able to help cause at 30 weeks I am not allowed to and barely able to even now by doctor. We had one month a while back that we were struggling to get food in the house and we told her and she said flat out she isn’t helping but goes out and buys stuff on her credit cards that she already told us she has to pay off and she doesn’t even need over half the stuff she buys! Even her husband told her to stop and stop talking badly about her own son. I just don’t get her! Sorry long rant...