I could be way off base here, but you could be reacting to the shift in your relationship with Yatzee. (A stupid way to explain this is I actively grieved the loss of two different cars. One was my faithful steed for 16 years, my light in the dark places when all other lights went out. The other was cut down in it's prime, and I mourned the years we might have had. Like I say, maybe stupid but the feelings were real.)