Girlfriend with BPD , keeps running off to do drugs. Help needed how to help her

[BDarry]

Hey guys as the title says, my girlfriend who suffers with BPD keeps giving into her impulses and leaves me to go to drugs. Im hoping today is the same as the last few times where she will purposely start an argument or say something horrible to me , accuse me of or tell me to leave, go to a drughouse for a day or two, idolise and socialise with people who just want her for my money. Spend all her money and then come running back ill and apologetic saying how ___ she is and that this is the last time.

The tricky part even though she knows these people are asss and want her just for money , she easily forgives and forgets and within days of coming home, i notice she starts talking about them again as if they are friends.

Has anyone else has a similar problem and has any advice on what I can say to her to calm her when she gets these impulses , and any techniques I could use myself to stop driving myself insane with worry (should i try contact her and tell her to come home or leave her to it baring in mind these people hate me for trying to take theyre cash cow from them , so they help her make her think im the enemy , or should i just leave her have her blowout and address the issue when she comes home)   

[PLEASE - NO RUN MESSAGES]

PLEASE - NO RUN MESSAGES This is a high level discussion board for solving ongoing, day-to-day relationship conflicts. Members may appear frustrated but they are here for constructive solutions to problems. This is not a place for relationship "stay" or "leave" discussions. Please read the specific guidelines for this group.

[Meili]

Let me welcome you here to the  bpdfamily, and wish for you as much help and support as I have received.  It's clear you have a lot in common with many of us here, and this is a community where we help each other, so I'm sure if you keep posting and reading you will find it helpful.

What do you mean when you say that they just want her for your money, you're a cash cow, etc.?