I don't think these friends understand MH problems, and are being very insensitive, by suggesting that your MH was b***s***, if they can't have any understanding, then perhaps their not the kind of friends you'd want to be around in the first place.
I think the MH team reassessing you because of your new care worker thinking your diagnosis is wrong, could be a good thing, as this might make it easier for them to help you better, your not a bad person, and are not doomed to be alone forever as some kind of punishment, just because of of your mental health.
Personality disorders can be treated and managed well, contrary to popular beliefs, and people do lead a normal life, it's better to be treated for what they truly think is wrong, than be treated for something that you don't have, that isn't going to help, I hope you're friends realise the mistake they've made, and that you can resume the friendship once your friends appear to have calmed down, and learnt to have more understanding.
Good luck with the assessment, I hope they make a decision soon on what they truly think is wrong, and that they manage to treat it effectively
Don't forget, you are not your illness, and deserve to be treated with respect by others
