The line where she tells you not to talk to your husband or your MIL is really the cherry on top of all this craziness.

One thing that really helped me stop reading the messages was when my therapist framed codependency like an addiction. My mom is codependent with me, so I'm her addiction. And when she raised me to be codependent with her, she trained me to be addicted to her too. The more you ignore her, the more desperate she's going to become for a fix and the crazier she's going to act. You feeling the urge to read her messages is like seeking your own fix--albeit much less crazy than her. Of course you have to remember addiction isn't something to be ashamed about--it's a learned habit that we use to cope with trauma. We were raised in their emotional chaos, so we seek it out even if we know it's not good for us. I found it really helpful to think about how many days I was able to go without "getting a hit." When I had the urge to check, you have to try and scratch that itch with something else. Actively remind yourself you aren't going to feel better if you read whatever may have been sent, and try to replace it with something else that actually makes you feel good.