CR
If you do nothing about this now, ie voice what you want to out of it. It will be exactly as you describe. And the only person to blame will be yourself.
Stop acting like the battered wife, and do something about it. Speak or email your director of rostering.
I have given clear warnings above, if you only bitch and complain about the past, you will get the system you deserve. It will be your fault and your fault alone.
There are three ways this can turn out, like the current system which is lose-lose for the company and us, win-lose where we get screwed over, or win-win.
If you want just bitch and complain about the past instead of looking to the future standby for win-lose.