I see many think that Aya is bad and that he is selfish or whatever, but the truth is that he is very poor, he was subjected to a lot of unjustified gossip, and even Atsushi thought that too until the truth came out in the last two chapters.
Maybe Aya never expected Atsushi to be in love with him and just his body, he just needs some time to accept his love, and Atsushi knows that very well.
