Jason Aaron 
Once Upon a Time at the End of the World #10 [PDF ebook] 

In the final issue of THE RISE AND FALL OF GOLGONOOZA, Maceo and Mezzy inflict emotional damage on each other in ways even the wasteland couldn’t dream of, and the threads of their relationship continue to tear. The community is dissolving and breaking, just like Maceo’s machines, and he and Mezzy are poised to be the final remaining members. If it comes to that, can they salvage what’s there, or will they even want to cross the chasm between them?