Nobody likes being invalidated. If someone says they really feel they have BPD, it doesn't mean that they don't simply because they haven't been "officially diagnosed". We all know that official diagnoses don't mean $hit half the time.

Sorry you're being ragged on, YMI.

P.S. Some therapists never said anything, possibly because my depression was masking it or because they weren't able to catch it. Others were very hesitant but volunteered it after a few sessions. And then I would say, "Yeah, I know." The people close to me in my life had already bludgeoned me over the head with their "discovery" of my issue(s)/disorder. But I kept mum to verify via a professional (several professionals, actually).