Wolverine and Cyclops have one of the longest and most tumultuous relationships in the Marvel Universe, and readers finally have an answer regarding the former's animosity towards his taller and significantly less hairy counterpart. The pair have been trading verbal, and sometimes physical, blows for years on end, starting when Logan joined the X-Men in Giant Size X-Men #1. Their ever-shifting friendship/rivalry was further developed over the years, with the love triangle between the two men and Jean Grey forming the crux of their mutual disdain.
The rivalry between Logan and Scott came to a head during the Schism story arc that saw Wolverine and a number of other mutants abandon the X-Men in favor of forming their own school. Beginning with the pair arguing over ideological differences (Logan was sickened by Scott's willingness to lead young mutants into combat), the story devolved into a brutal physical confrontation.
Benjamin Percy and Adam Kubert's Wolverine #9 poignantly digs into the roots of Wolverine's initial dislike of Cyclops with a single throwaway line. The issue sees Logan infiltrate a black market auction selling items bound in superpowered history like Captain America's original mask and Wolverine's Team X partner and close friend Maverick. An infographic at the end of the issue holds a particularly telling quote Logan made about Maverick that will seem familiar to anyone who's ever read an X-Men comic that featured Wolverine and Cyclops on the team.
Wolverine's hatred of so-called "pretty boys" has been prevalent since long before he even met Cyclops. This quote about Maverick is proof enough. Logan has had negative experiences with tall and handsome leader types; when you've been around as long as he has you would have to at some point. He may be the coolest man in the Marvel Universe, but even Wolverine can be insecure. Pair up his natural disdain for authority figures with a handsome boy-next-door type like Cyclops, and Logan's constant picking on his teammate makes a lot more sense. Granted, Scott has given Wolverine and others plenty of reason to hate him before.
While Logan and Scott have had their ups and downs, things seem to be better now. The founding of the mutant nation of Krakoa has been like wiping the slate clean for Marvel's most hated and feared people. That includes the feud between Wolverine and Cyclops. The two have patched things up and are finally getting along. Like, they're getting along really, really well. And if these two can let bygones be bygones, anyone can. Here's to CyClaws, Marvel's hottest new couple!