Look, until she acknowledges she needs help she is going to turn all efforts away. It will really hurt you and you may come to the point you feel you yourself can't go on. Just try to be there in case she does fall into your arms.

Don't forget to take care of your own needs. This is incredibly stressful and anxiety causing. There are support groups for this sort of thing. Let your own mental healthcare team know the level of torment this is causing for you.

In the meantime, you might want to document things as they arise.