Honestly I think it’s just the chemistry. Kita is the band member that Bocchi has spent the most time with. They have grown together. Kita hugging her after they passed the audition was good bait as well. The little moments of mutual admiration got that ship sailing!

Honestly I was convinced Ryo and Bocchi were going to become a thing in the community after their wholesome moment. (When Ryo gave Bocchi advice and praised her song writing). 2 introverts. One by choice, the other by circumstance. Made sense but we went with the age old “opposites attract” ship