A bit of context. After refusing to visit her due to me being an idiot and not seeing the signs of a impending breakdown; I spent the whole of August not receiving any effort from her side and only a few days ago we agreed on a two week break. 

I helplessly worried about her because for the entire month she went into old habits of turning to booze and drugs after almost two years of being mentally stable. I fear she is currently (and during August) “splitting” from me, and from reading articles about this I fear that there is no way a healthy way we can resume and worry about her mental state for the foreseeable future.

I was wondering if anyone had any advice. I love and cherish the girl but I fear there is no way back. Any help would be appreciated. 

Thank you!