My SO has BPD and struggles with an addictive personality, which so do I, but I don't have BPD although I have extreme mood swings and anxiety/depression. We used to be meth heads and we have successfully been clean for 6 months now. However, we're slowly both tapering our Valium, we're currently at 10mg a day. Before our sobriety we tried out a bunch of drugs, and some of them like shrooms/LSD helped her depression actually, but nothing as deeply as this one obscure med alone lately. So I've shown her gabapentin, which I am using here and there for its general mood stabilising and anxiety reducing effects, and after she's tried 600mg, then 900mg the next day, she told me that she finally felt like a weight has been lifted off of her after 10 years, (she's 22 and her depression started when she was 12). She seemed quite a bit manic to me even the next day, we had a great walk in nature and discussed topics, but she kept telling me how she thinks that she found her wonder drug for BPD and that if she takes this just a few time here and there, say 1-2 times a week, she could be fine and much better off without doing therapy, which she doesn't seem to want to go into. 

I told her many people say that meds are best combined with therapy but I don't know how to actually convince her of this, so if any of ya'll on here could give some insight on the matter it would be deeply appreciated, thank you!