Hi DAJ and welcome to the family

Getting a pwBPD into therapy is a very difficult task and requires a lot of sensitivity, otherwise it can easily be percieved as a breach of trust and put them on the defensive. It is understandable that you want her to get help, and this
article offers some valuable insight on how to approach this without coming across as critical or reproachful. Feel free to share your thoughts or ask any questions!
How did things devolope in the meantime? Is she still pushing for divorce?