People have been asking about this so I thought it would be a good idea to clarify things. Evey identifies as non-binary and uses they/them pronouns. This has been the case since the time skip. They figured this out for themself some time between Book 1 and Book 2. I try not to make a big deal about this sort of stuff because I rather the work speak for itself. But my non-acknowledgment has led to some confusion which is the opposite of what I wanted. So it seemed best to address this before Chapter 3, which is where I originally intended to address it in-universe. With those specific pages being months away this seemed like the better course of action.
Hopefully that clears things up. Thank you for reading.