When Client/Provider relationships go wrong . . . .

[mom-in-alberta]

Agreed, this may have been a sh#*%& week for everyone here. The little one sounds sick, as a teething fever is usually very low-grade. The kids are having a hard time with the adjustment, and mom clearly is too.
BUT THAT IS NO EXCUSE TO SPEAK TO YOU SO HURTFULLY, OR HANG UP ON YOU WITHOUT EVEN ALLOWING YOU TO SPEAK!!! Now that I have that off my chest... LoL
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.
And, no I would not accept them at extended hours. I learned in my first year that I set my hours as such for a reason. Hopefully they stay and you continue as it WAS. But if this is the "real" her.... Good riddance!