He is with a therapist (6 months in) and offers nothing. Nothing. No feedback at all. Won’t talk about it. Where do I even begin?... .
Welcome PeanutButterCup!
The only way you can be sure if they have BPD or any disorder is if they become diagnosed by a professional. But there will still be some misdiagnosis unfortunately. there are a lot of BPD traits that you can compare and deduce, however. Also, maybe he is afraid to admit he has BPD to you after his therapy sessions? People with BPD do have a fear of abandonment and also sense of shame. If this may not be the case, you guys might want to switch therapists? Not every therapist know what they are doing unfortunately.
Im glad you got to post here, and share your story with us. This site will provide you with ton of information, and knowledge to help you with your situation and cope in anyway you can. There are tools listed above the page, please look them over as they are there to help in relationships with those who have BPD. The tools are not 100% proof but they do seem to help a majority here.
What signs do you see in your partner that makes you feel they have BPD? Just asking to better understand your situation and being able to help you.
Also look into reading, "stop walking on eggshells" when you get the chance. As always, do your best to keep this website hidden from your partner as it may cause some negative emotions on their end.