I know I've already had a rant about mil but honestly she's just getting worse, if it isn't enough that she criticises my parenting and the way I would like to raise my children, she's now again going behind my back, I'd asked her not to do something regarding dd as I am the parent and will sort it myself, she decided to do it herself anyway and tell dp she had done it. When I found out I sent her a polite but firm message telling her that it was wrong she went behind my back and not to do it again, as she has done it on more than one occasion behind my back regarding the children I told her I felt she was trying to take over my role of the been the parent, I never got a response from the message or an apology. She's then decided to tell it all the dp best friend but not only that she also asked dp best friend to found out how dp ex girlfriend was doing and asked him not to say anything to me cause she didn't want me to send anymore awful messages.
I'm literally at my wits end and don't know what to do, Aibu to consider not letting her have contact with me or dc until she can apologise and realise that she is interfering and causing trouble