This exact thing is happening to me...
WH spent $600 plus a paycheck on A related things or just going out to bars and trying to get other people drunk. He also got demoted TWICE because of "suspicions" of adultery (military).
I just came back from trying to work out a deal with the electric company....so that they would wait til payday so that they won't shut off the power...on me and my 5 month old. Many of our bills are late. I hate opening the mailbox now. And like you, we were never rich...but we could always pay all of the bills on time and have a pretty decent amount of money left over to decide what to do with.
All he has to say? "It'll be okay. We will get it all straightened out in a few months and be back to normal." Yeah, we may...but not before our credit takes a ginormous nose dive.
It angers me that his selfishness has infected EVERY aspect of our lives. And that is the sad part, we have to deal with all of the consequences of their actions. On top of all of the emotional trauma.