DBT is a good thing. Too often a person with Borderline traits has too much Denial, Blaming and Blame Shifting to start therapy sessions. It is even harder for them to continue them. And it is important that they do more than attend, diligently applying the skills and insights into their lives, thinking and perceptions is crucial. It take time to see progress. Therapy often takes years, for many it is a life-long journey.
If you would have asked first, we would have replied that it is generally not helpful to share a diagnostic label as a reason for therapy. As you discovered, it often triggers overreactions. But what's done is done. Perhaps you could minimize what got said but I don't know if that would help or not.
I had been married for over 15 years but if my ex would have started therapy, I would have been willing to start therapy with her too, though it would have had to have been individual and not joint therapy. But she refused the concept of therapy, as far as I know, to this day.


