The sub-gong is being rejected today as well. Technically they both start out oblivious to their feelings. There's a promo somewhere out here for this one. It's a straight-forward story, nothing too dramatic.
Kimi no shiawase wo negatteita. Because of the mc's insecurities about his pheromone disorder, he doesn't realize the ml is definitely interested in him. The first volume(?) is a oneshot, the second is the sequel, the third is untranslated. I think it had an ongoing side story the last time I read this one. This one is angsty.

Any stories where the ml has blatant favouritiam with the mc? And mc is indifferent/ oblivious/ dont like it?