<human>: I have been dating a girl who I am really in love with for just over two months. I won't go into detail but she has had a traumatic life resulting in chronic insomnia. She is prescribed Ambien for legitimate reasons, but I have come to the realization that she abuses it heavily.

The worst part is that she combines it with alcohol. The absolute worst part is that she combines it with alcohol when we go out sometimes resulting in a total blackout and loss of basic motor function after 3 glasses of wine. It is like she is a different person when she takes it and gets extremely defensive and sometimes verbally abusive when i confront her about it. 

She often displays the classic sign of addiction by making the issue about me being judgmental or hypocritical or that I'm making it up when I tell her I think she has a problem. Last weekend she had the worst black out I have seen which resulted in a 3 hour fight which she does not recall at all. After that she promised she would never combine the two again. 

Last night however, she took one to help her go to sleep and I caught her in the kitchen drinking wine when she told me she was going to make tea. I confronted her and got really angry for betraying my trust but she gave me this bs story of how she was going to tell me she drank some wine when she came back to bed and it was just to help her sleep and im an asshole for not believing her blah blah blah. 

Obviously I love this girl or I would have dumped her already. I am really worried about her because when she takes Ambien her personality completely vanishes and she becomes this shell of herself that says things she would never normally say. I want to help her but I can't subject myself to this much longer as it is causing me horrible anxiety and depression. Any advice from someone who has been in a similar situation would really be appreciated. Thanks.

Could you distill the essence of the text into 1-3 sentences?
<bot>: Girlfriend takes Ambien and drinks and turns into a different person and Doesnt think she has a problem. What do i do?