Magnus-gone bad

After his heart-breaking breakup with Alec, Magnus is turned into a spiral of emotion. Anger, frustration, fear, sadness, loss. Alec hadn't told him the reason why he suddenly broke up with him, but all he said was "Magnus, I can't". There was no longer anyone to keep Magnus grounded, He hadn't seen Alec in weeks, His only getaway was his drinking, He fell back into his old rebellious ways that he had never wanted to go back to but now with no one left he cared about most, Will Magnus fall right back into the clutches of his dark past, or will someone pull him out and save him from going down a dark path he may never recover from.