Kassie:
It is a hard thing to witness...all the losses. To a healthy person, these would be "red flags" but for those sick with the addiction, it doesn't seem to sink in. They continue to put blame on others around them, their employer, the authorities, and so on.
Hard to witness too when the losses effect you, as they are your losses as well! For those of us who continue to stand by, well, it's the price we pay. Some of us stay until the ship is going down, and only then save ourselves. (I can say that for myself!).
Here's hoping that your A gets it pretty soon before that happens. If not, I hope you can make it safely to shore.