Oh M2C, you have a great big from me to you.
It must be just awful to feel like you are unimportant especially when you are laying your body in someone else's hands. You have every right to be furious and worried and loads of other feelings all at the same time.
I am glad you are venting and sharing the burden with some people who completely understand how you are feeling. I hope that it doesn't cost you the cycle, and that it can be redeemed, and if it can't you need to have some serious words with that FS about being left to hang out to dry like this.