MOTHER IN LAW FROM HELL!!!!!

Honestly idk whats wrong with her. Recently my house had some reno work so husband & i stayed in her place. She invited us over because i was pregnant and with all the dust from the hacking she said its not conducive for me to stay and ‘risk’ my health & baby. Fine, i agreed. Im not too sure if any one of you can empathise but she’s a narcissist. And with these group of people, its never enough. Nothing i do is ever enough. Im 9 months pregnant and i stayed at her place for 14 days when the work was done at my place. Out of this 14 days, 11 days i was at work (i work shift). I leave home at 8am and i reach home at 9pm. I see her for an HOUR everyday. YET, this bloody women had the cheek to tell my FIL ‘oh she does nothing. My son does everything for her’ UM YEAH??? My husband WFH, he picks me up from the bus stop, takes out my meals, massages me at the end of the day because honestly im bloody tired after work. How dare she invites me over pretending to be this nice women and yet complains to my FIL about me. (Btw both of them are divorced and she’s remarried so idky she is still talking to him about me????) She has this habit of talking shit about every women who comes into her son’s life (his brothers wife/gf) and apparently no other women is better as if she is TOP TIER. She is making me hate her more every single day. My husband told me to ignore her because she’s been torturing us for the past 5 years ever since i was tgt w him. But how can i?? Shes a two faced bitch. Everytime i try to be nice i find out behind my back she says such stuff. And now, I DONT EVEN WANT HER NEAR MY CHILD. #firstbaby #pregnancy #pleasehelp