Ladyzero, I'm not sure I'm particularly qualified to be able to answer your question as I've never had sex, but a couple of things popped out of your post.

1. It looks as though your boyfriend doesn't particularly understand your depression and the effects it has on you. I have supported a friend (a non sexual female friend) who has suffered from depression for a number of years now and it can be difficult as the triggers can be so small, yet the effect so devastating.
2. You said you had a very active sex life before, so for him he has gone from an active sex life to nothing. You also said it's been a year. That's probably a long time for most people. (but I've racked up 40 years without sex, so what do I know?)

I'm not condoning his behaviour, but he has been loyal for a year and did cancel the escort. Maybe you could try talking to him about how you feel and why things are the way they are?
I'm no expert on this, but could a fresh re-start of your relationship work? By that I mean going out on dates, not necessarily with sex at the end of it. Maybe he feels neglected and a date will help you reconnect. This may also help you by encouraging you to get up, wash, and hopefully feel just that little bit better about yourself for a short while. I know it's difficult when you're depressed (and I'm probably showing a lack of understanding myself), but that little bit of effort may help lift your depression a bit.