Can anyone explain this Heathcliff Comic?

Just a few days ago I start re-reading the alternative-to-Garfield, Heathcliff. When I was a kid, I was a fan and I just wanted to see if I could recapture that fandom. This morning I was searching for Heathcliff on google when I stumbled across this comic from a few years ago and much like the original poster, I am stymied. Anyone have any thoughts as to what it means?