It would be my fault they lost their house if I didn’t join their MLM. Should I stop being friends with her

Y’all I am in shock that I’m even saying this. At the start of Corona, my friend moved with her husband into a new house and I helped them move. Had no problem with that. The other day she called me and said we should meet up for lunch. Things are just now starting to open up around us so I’m down! We’re having food and she mentions this amazing opportunity she has to offer me. I don’t even want to promote this MLM but it starts with an A. I decline and tell her no thank you. She starts causing a scene saying it was going to be my fault that they lost their house. Excuse me what??? I told her I was done with this convo and paid for my food and left. About 2 hours later her husband calls and starts bitching me out. Saying how his wife said I was rude and how apparently I agreed to pay for the food but ditched her leaving her to fend for herself. He asked that not only do I pay for $115 worth of food. YES $115 my food cost me $25 so idk what in the hell she bought but he also demanded I buy a starter pack from her even if I don’t use it. I told him they’re both out of their god damn mind and hung up. They both have tried calling me and my husband texted me asking what was going on as they’re blowing up his phone too. She then went onto Facebook and tried bashing me how money must be tight for me as I ditched her at lunch without paying and isn’t supportive of her. And how I’m jealous of her and all the amazing opportunities she has and because I won’t be driving a Mercedes. Again, not once did I agree to pay for lunch or want to join her MLM