Cruz also did not like playing Tuco, years ago I saw an interview that lead me to believe that was why he left the show, he said Tuco was a tough character to play, very high energy and he did not like doing it.

The lack of chemistry is suppose to be there, it's what people with autism live through as they struggle creating connections and with new people. It didn't feel forced or unrealistic at all, I don't even know if it should be considered a romance since there was nothing physical between them at all. I was actually hoping he got to bang her in this movie after all he earned it.