Whence Lies Causality?

On January 5, I went back to work after a nice two-week-long, yet not entirely restful, holiday break.

On January 12, R went to work on a training shift that changed our cohabitation from 4 PM – 7 AM to 11 PM – 7 PM.

For the past 2.5 – 3 weeks, I’ve been feeling overwhelmed at work, have not been enjoying myself at much, and have been getting annoyed by my students more than at any point previously.