Welcome Robert!  I am sorry to hear that the one you love is sick his way.  My mother has been an addict for many years.  You have to let go.  We have all been blinded by the love for the person afflicted and fear for the well being.  But we simply lie to ourselves when we "hold on to save their life." We usually do more enabling then anything.  It simply slows down the rock bottom process. 
What ever you trying to delay from happening will simply happen anyway.  Your girlfriend can not live if she doesn't want too.  I hope you can find some support in your local community, have you contacted local agencies that provide support for those with addicted loved one?  I hope you will stay with us.  Peace be with you!

I knew of some people who did that crack stuff.   (I'm extremely paranoid about how to word things.).

Back in the day we use to all get together and grill out and play volleyball and meet down at the beach all afternoon.  When I discovered 'these people' were doing crack it really made me feel sad  (for want of a better phrase).   One person use to be such a beaufiful woman.    Now she's hideous.   I don't love her less for it, I'm just bothered and sad about it.    She came over one day and said she didn't want people talking about her behind her back.   (She thought my husband was).  I just mumbled that nobody wanted anyone to talk behind his back.  Then we started talking about vacuum cleaners and the subject was forgotten.   

Back in the day, I use to be so intimidated by this woman.   Once when I had drank 4 matilda bays  (they discontinued those wine coolers)   and had tried some moonshine for the first time, just before my love-affair with the commode, I hugged her tight and told her I loved her but felt like she was way up here  *indicating way up high*  and I was way down here  *indicating way down low*.  She just laughed that night and said she just fiinished high school and nothing more.     Still, I felt intimidated.  She just had a way about her. 

Anyway, tell your girlfriend  about this story-- how this beautiful intimidating woman turned into a bodiless slug that resembles jaba the hut only with more wrinkles.  I bet she'll think a bit more about the subject.

here is that link.
http://jacksonville.com/news/metro/2009 … _by_police

Her lengthy criminal record was a domestic violence charge from her ex husband 2 years ago.  We didn't know about the home invasion.  He had kicked her out whenshe gave away his car with his golf equipment in it but he let her come back  2 weeks later. 

Crack is bad.  Please show this to your girlfriend and GET HELP.  I'm sure there are drug treatment centers where you live.