I agree with DB that the D doesn't have to be the boundary, in fact I think of a D as the worst possible boundary. The consequences of living up to that boundary on your end, time money the fallout....it is truly the last, last, last resort boundary.
Tank up until now...the end of your 30 days...in which it is hghly unlikely she will snap out of it at the end of that time frame; even if you told her about this deadline...I do not think you did.
(If you didn't you cannot expect her to magically figure it out.)
Up until now, she has only seen how awesome you shine during perhaps one of the hardest times of you life, a time when most people only show ugly.
When you take away that shiny? You don't replace it with 'ugly', you just take it away. Either slowly as DB suggests, or in part or all. But never the ugly, you don't show her the ugly.
Experience is a brutal teacher, but you learn. My God, do you learn. - C.S. Lewis
Life is usually all about how you handle Plan B. - Jack3Beans
Listen without defending; Speak without offending - FaithinAK