Wretched

Athena didn't know what to do when she walked in on Gianna drinking. 

She had woken up to use the restroom, and then had gotten thirsty. 

On her way to the kitchen just now, she had found Gianna drinking heavily, like her life depended on it. 

From the speed and haphazard way Gianna drank, Athena could tell that her friend had downed more than eight glasses. 

She sighed, and rested her head on the door post, still watching her friend. What could she do? 

She had seen Gianna in this condition only twice. 

The first was three years ago, when her parents died in a car crash. 

Athena had drank with her, they had drank till they passed out. 

That had been understandable. 

The second time was on the night she had introduced her to the children's godfather, Zane, almost two years ago. 

That hadn't been understandable, and neither was this one. 

What was the history between them?