Dear T,
I wish I could just cancel today, but I'm sure you'd charge me (don't want to lie and say I'm sick), and that would damage the relationship further. I know it's your policy, but I also came in for an extra session, so you wouldn't be losing any income from me this week. Plus, you said once that I'm so reliable, I probably earned a free "no-show" (which is different from a late cancellation). I'm sure you've forgotten about that, just like you forgot the other times I said I loved you, and you were fine with it, and I didn't start asking for more things after, like you're so afraid of now for some reason.
(I'll avoid the scary word),
LT