Uke didn't realize that he was dating his new 'friend', whilst Seme was trying to be a considerate bf, as he didn't realize Uke didn't realize they were dating (Uke also didn't realize he was in love, but what else is new). A continuing theme throughout is the Seme getting swept of his feet by Uke's cuteness repeatedly and having a hard time controlling himself (poor guy, his bf is just to blimming adorable).
Asatte ni Kiss