
What the friend said is biphobic, but I really think there's a distinction between the character saying it and the mangaka/manga saying it. Because you know this is going to be resolved and the main couple are going to stay together thus proving that whole "bi people can't be trusted" shtick wrong, Minato will realize he was being irrationally anxious, etc. The friend is playing devil's advocate in terms of the plot, but it's not like the manga supports his view. Though let's be real, the LGBTQA community is also rife with biphobia, transphobia, acephobia (I've experienced the latter as an asexual) in its own way, unfortunately.

This is such a sweet story, and I love that it centers on an autistic character, since autism (or any kinds of disorders whatsoever) are so rarely touched upon in media, much less manga. The only thing I wish is for the story to have given more space for Tsuburaya's insecurities that were hinted at in the end--the idea that he was just lucky and had "gotten there first," that he isn't special. That seems so sad to me, and it just seems like the kind of thought that would continue to haunt him underneath all of his happiness. So I hope that there can be a sequel or an extra chapter where Tatsumi can reassure him about their relationship...

how this story can be so tender and painful, cute but also melancholic, is nothing short of amazing. florence welch and greta gerwig said in an interview once that their ex-boyfriends had said, "it's like you're building a house full of rooms that i can't go into, where i'm not invited," and i feel like this arc is so similar in tone--the feeling of alienation from the people you love as you grow and develop.
This is such a sweet story! I really enjoyed it.