Marrow Thieves Question

This chapter, as a whole, shows both Frenchie and Rose acting more like the teenagers they really are - teen angst, lack of clear communication, jumping to conclusions, basing their reactions on emotions, etc. - than the adults they have had to be in the entire story. Do you think there is a reason that this teen-drama CAN come out now? Is there any additional pressure on them now that is perhaps causing this to happen? Do you think their argument is justified?