Well that was a depressing peek into Kiyomi’s life, over the course of at least a decade all of her previous lovers using her for her body and all. The only person prior to that expressing commitment with any enthusiasm being the hollow promise of the son of an old neighbor from her youth too young to understand, let alone remember said promise and its meaning.
But looks like Shiina has came to same conclusion I have, he must like all of them equally to same degree. Regardless of how strongly his lovers may or may not feel about him. Which honestly depending on how you look at it is good or bad. Either he holds affection for all of them equally, or despite any of their individual efforts he’ll never reciprocate or commit to any of them yet still desire to monopolize…