My MIL has always been verbally abusive towards her entire family. She is mentally ill (bipolar) but refuses to take her medicine.

Since I've come along, for whatever reason, me and my family have been the most frequent target of her attacks. She says horrible, hateful, and mostly facticious things about me (and my family) when she is having her "downs" and I'm expected to just brush it off and move forward when she has her "highs."

I no longer take her attacks personally, but they are wearing on me nonetheless. This past week, she went on a 20 minute rant about how horrible I am, that I "hate Catholics and all things Catholic" and am therefor "conspiring to keep them away from my son because [they are] catholic." Umm...what?! Bitch is literally crazy. She makes up these weird, paranoid scenarios on her head and then launches war based upon them. It's bizarre.

I'm to the point now where I just don't want to deal with it anymore. Why should I force myself to be nice to this woman who is so mean and spiteful? My husband supports me if I choose to break off my relationship with his mother, so that's not an issue. I worry that it will end up having a negative impact on Brady though. I would never keep her from her grandson unless she was abusive to/in front of him. Still, eventually he will notice that mommy doesn't come to family gatherings and that grandma isn't allowed in our house. How would I explain that to him?

I'm just not sure what to do. Would you continue to deal with the verbal abuse so your child could maintain a relationship with his grandmother? Or would you eventually have a breaking point? If so, how would you explain it to your child?

I understand that she is sick. I acknowledge that mental illness is no reason to cut someone out of your life. However, she refuses to take her medicine, go to counseling, or partake in any other type of treatment to improve her health. So, my empathy is running thin.