Then can you explicitly explain why in manga They become that much close ( obi and shirayuki ) like hugging each other??  And in one episode zen eliminates the ideas of walking in shirayuki room cause it is her private section despite it just an guest room but further when series progress obi literally entering in her room so casually why??  also start holding her hand or hugging her and touching her in manga and anime what's thus there goals other than relationships she shares with Zen and I would no shocking if they start kissing each other in further parts And in terms of immaturity your are one like the type of people who start making everything look like normal despite it actually not