it's the never-ending flirting with tanaka until one of you suddenly gets the feeling that the other person also means it, just as the other person realizes they mean it. it's the awkward moment in which you both very much want to make a move but can't figure out whether you're reading things wrong. and... the screaming of a confession, only for the other to mishear it (or be sure they did) anyways.
you're continuing to be closer friends until it becomes a point of no return, and now you're both just dreading the day you get friendzoned. everyone knows you, closer than two peas in a pod. friends, and that's it.
until your lips meet each other's; until your mouths confess clearly; until the final walls have been broken; until then, it's the lingering glances and self doubt and endless pining for the someday.