Deadpool: World's Greatest Vol. 8 Til Death Do Us (comics)

You've never seen marital problems like this! It was a whirlwind romance - Deadpool traveled across the world with Shiklah, fighting all sorts of threats at her side, and finally married her as a way to thwart the evil vampire lord, Dracula! But the honeymoon is over, and reality has set in. Wade's bride is a demon succubus and the queen of a monstrous kingdom hidden beneath Manhattan. So when this Monster Metropolis declares war on the surface world, Deadpool's loyalties are divided between his husbandly duties and the role he's crafted for himself as a hero. Can Spidey and the Mercs for Money help him decide whose side he is on? Brace yourself for a domestic dispute that's really going to break some things up!

Collects Deadpool (2015) #28-29, Spider-Man/Deadpool (2016) #15-16, Deadpool & the Mercs for Money (2016) #9-10.