Unfaithfulness is worse than drug dealing and cold blooded murder?
Not to mention, it's only arguably unfaithful since she signed divorce papers and was begging him to break up but Walt refused and intimidated/blackmailed her.
This is after he tried to rape her and before he tried to fuck another woman.
There is no "Skylar is actually the bad guy/worse" that isn't seeped in misogyny
^ Hey now that's completely unfair!
http://i.imgur.com/yPw05Ob.png