Since you have such a good prior relationship, I would be very upfront with her. "I feel like we had a really rough week last week. Is there anything that you wanted to discuss, or is there anything I should know about? I would like to move forward, but I am not comfortable with how everything played out when we were attempting to communicate."
And that WOULD be my last kick at it. Even a hint of that raging bitch again, and I would be summarily dismissing. Things may be crazy in life for her, and maybe there is even stuff going on that you don't know about (I always try to remember that there may be more than what I know of), but there is no cause or excuse to take it out on you.
Very good advice. Don't sweep it under the rug as it will only happen again if you don't address it.
Good luck.
Always ensure that your child receives quality care by taking the time to investigate the provider and by asking for references! We simply cannot verify the claims of every daycare provider.
Updates
We expect providers to keep their listing and available openings up-to-date. However, to prevent oversights, openings expire after 45 days.