Sorry that didn't go very well, that's a shame... aww.
You know sometimes our insticts when we feel threatened are to just do that, run away, go silent or close off. It's a difficult one to bring up abuse because we can never really find a time that is right to ... it's always going to be uncomfortable for the one supporting or receiver, or both
It probably caught her off guard but it's not your fault, I see that you are just wanting to help her out
I don't agree as such that you two are a temporary thing, I believe you two have a friendship potential. You know sometimes I feel we overlook the importance of being friends as well as being partners. Friendship is the best foundation you can have, whilst she is angry at you right now trust it's ok. Same with the substance misuse. People who struggle with addictions sometimes struggle with denial.. i'm not addicted, I could stop anytime, it's just a night off.. etc
So when a friend or relative comes along and points out they may have a problem or do have a problem, it's again going to trigger most people to become snappy, withdrawn and probably cut off like she has done with you
Give her cooling off time and space, a letter will go a long way just explaining that you are sorry for how you worded it. it's not easy even for those who are used to talking about addiction and abuse, there's never a way we can find the perfect way of asking or letting on that we know, but the good thing is it's over and done with now, sometimes these things are bettr approached slowly over time (if it's historical) but if you were worried about her in the meantime and her safety definitely seek out other support, professionals
I see you talking again, definitely. I feel the main issue is the guilt. She feels guilt and she probably feels in denial that there is a problem. Why she is using may seem perfectly fine and rational in her mind, healthier than other options,you know, i'm sure she has her reasons and probably justifies why it's ok for her to continue, it is after all her choice and as a friend you can only give pointers, but you have done great
Done great in reaching out to her and showing her you are there. I thnk from here all you can really do to help this along is just show her love and compassion, patience, and keep reminding her that you are available when / if she is ready to contact you again. I'm sure she will cool off.. there's no harm in an apology even if it wasn't that bad. Chances are you could have been the kindest about it all to her but she would probably still feel hurt. Don't take it personally, but yes, an apology can't go wrong either way, it will most likely help