I just noticed that! Like Maya confuses me sometimes with his sexuality, cause it's normal to say, " I love you", to the person you care about.
Right! When you reread the whole series you wouldn't see or read any lines from Maya that he said he loves Nemugasa but when it comes to his actions I would say he choose to show his affections through his actions. There were times that he almost said "I love you" to Nemugasa but he was interrupted by Nemu, it happened when Nemugasa got drunk. Maybe Maya was not a type of person comfortable in saying those words but let's see maybe we would hear those words from him in next chapters. Sensei really like to tease us.
Japanese don't normally say "I love you". They show their love through their actions, like how they take care of the one they love and do things for them
I noticed that Maya never said 'I love you' to Nemugasa. I read from one of the chapters that he was very shy or embarass to say those words to Nemu because he was a man something to that effect. That's fine actions speak louder than words as they say.