My stepmom used to do something similar, but her aim was to just harass and insult me. Mind you I wasn’t even living with her at that point and had my own house but she would constantly call me while I was at work to guilt trip me about shit I had nothing to do with. Like, bitch, I do my utmost to avoid you like the plague what could you possibly want to bother me about now?
She once sent me twelve texts in a row because she had sent my dad to my house to hang out with me when she knew damn good and well that I was at work. Then she tried to say it was my fault that he made the trip for nothing.