Hi Lisa,
Welcome.
I think you are aware enough to know you are not ready to be in a stable relationship. I really admire your awareness. The question is if you are going to act responsibly, in everyone's best interest, or if you are going to make a choice to go full speed ahead, in hot pursuit, of something you know at this time will only wind up in pain for you and for someone else?
I think "trying to warn" someone about our illness is not something that works well. I think you have a few choices, and only you can make them. You can try to go more slowly, knowing you are off meds and not treated, you can break it off with this man and let him go with love, you can give him a lot of information on BPD (like give him the link to
www.bpdfamily.com) and get yourself into treatment and make the decision together.... you can ______
From the outside, just by what you are saying, maybe you might want to check out a DBT day program sometimes called a PHP(partial hospitalization) (or maybe residential?) like at Mclean hosp or Silver hill? I don't know what's available in your state, but I am sure you can find something-
www.behavioraltech.com marsha linehan's site has info on where to find resources...
would you like to start serious recovery and maybe have a chance with this man? Or is this really n ot about this man considering you have only known him a week?
what would you like to do to change the way things are for you because of BPD?