bpd is a serious mental health disorder and unfortunately i know from my experience that a loving person one minute can turn into a very abusive,aggressive and sometimes violent person.
paranoia can be prominent,thinking people are plotting against them and trying to do them them harm maybe not in a phsyical but verball way..
fear of been abandoned feels so very real to a bpd sufferer,that it possible they will try to push you away first,thier opponions are so real to themselves and at times they interprate things that in reality are non existingtent.
if you do not agree with what they genuinely believe to be true then they will argue and try and convince others that they are right and the rest of the world is wrong.bpd sufferers believe that if you do not agree with them then you are in fact an enemy.
this is my experience of people who have bpd,