You're right. I need to man up with my boundaries here. I don't need to read up. I need to fight back on this stupid "let's pretend everything is ok now" crap. Which is the main reason I'm so pissed off and hurt, because I'm going along with the act.
The boundary has to be delivered calmly and with you in control of your emotions. She will test you on the boundary. You can't get baited into a fight. The issue is her behavior, that's what you adddress. We all know how couter-intuitive this sounds. DBing ain't for wussies. Looking into the fishbowl is a different perspective than swimming in it. You can handle it.
M22,H45,W45 S21/18D12 Retain faith that you will prevail in the end, regardless of the difficulties and at the same time confront the most brutal facts of your current reality, whatever they might be.