I know this arc has a lot of people debating on whether a SH will end up in a romance, but Oda has also used this arc as an opportunity to showcase Nami’s loyalty.
During the fight with Cracker, Nami did not run away, she had 11 Hours to get away to not only safety, but to go after Sanji, Chopper, Carrot, etc. Instead she stayed with him, despite the enemy’s status as a YONKO COMMANDER and fought side by side with her captain.
Even better is that she yelled at the same commander that she does not care what his position is, because they guy fighting alongside her will be the Pirate King and he has no limits.