It's not at all clear to me how Rainbow is supposed to have 'manipulated' this response from her T?? She sent her T an email, as per the agreement. Her T emailed back and added an extra line. Not because Rainbow begged her to, or cunningly added the description of the moon to lure her T in... but because her T freely chose to.

I do agree that it feels a bit problematic that your T chose to break her own rules, especially on the first week of the new rules being in place. It would make me feel quite unsafe and I guess now it is very hard to know what to expect. But it's good that you feel confident that you can negotiate all this with your T.