some (most?) people are just
at being supportive.
people mean well. but they have a tendency to say the wrong thing, or give unsolicited advice, or to get frustrated if you dont listen to their advice.
i was venting to someone about work just the other day when they turned it around on me and accused me of doing the thing i was annoyed about. its not that i disagreed, but it, especially at the time, was rather unhelpful. if you want to point something out to me that youd like me to change, do it when im not pissed off and venting, ya know?
and i, personally, can get easily riled up when i feel invalidated. i find its best to do a few things
1. be realistic about the kind of support you are trying to get from a given person. some people just arent good at certain things, certain topics, certain situations. if you expect them to be, youre just going to get angry.
2. state what kind of support youre looking for upfront if need be. if im looking for perspective and feedback, critique, i tend to say so. if im looking to vent and just want the person to listen and/or validate me, i say so.
3. if the support someone is offering is unhelpful, its okay to say so, and try to redirect; it can be risky with a bpd loved one who is sensitive to criticism. it can feel like rejection and then youre fighting two battles trying to make them feel better. you need to use language thats assertive and firm but gentle and constructive, too.
frankly speaking, if that doesnt work, politely change the subject, and use the support system(s) you know will.