The Nick-Colonia storyline was crap
Sorry, but I don't get the love for Nick on this series. He was good in Season 1 because he seemed like a believable character, a drug addict amidst the craziness of the apocalypse and still making dubious decisions that one would expect an addict to take. I loved the scene where Madison slapped the sh*t out of him because THAT felt believable.
However, Season 2 Nick may actually be the worst character and in the running for worst acting as well. Making Nick a "star" of his own storyline was an awful idea. None of his scenes with Alejandro resonated. The ONLY interesting part of Colonia was the Nick-Luciana romance and that was mostly because it had moments of levity and Luciana came across as more likable in the romance parts than as a badass leader. But Nick, who somehow was weaned off of his addiction in a mere few weeks, seems unconvincing.