Bueno, puedes ser un chico que le gustan las cosas lindas, ser lindo también y gustarte una chica. Ningún problema con eso.
His problem does not seem to be with being a boy and liking cute things, but with being forced into a gender category he never wanted to be in, and that's why in this chapter there's an emphasis on things being separated by gender and having to show his body bothering him. He has very clearly hinted at wanting to be a girl and if anything, is a little trans girl falling victim to comphet and not really understanding that she's also allowed to be both a girl and into other girls. It's a common struggle among trans lesbians.
And I'll say that if the story chooses to keep her a boy who likes cute things (not that that seems to be the case so far, but that's the usual due to transmisogyny), then it'll be just plain disappointing. Reacting with "you can just be a boy and like cute things" is completely missing the point of the story so far. This is so clearly a trans girl and she's very, very unhappy and uncomfortable as a boy and having to be among them.
supongo que tienes que hablar en inglés pues parte de la moderación solo habla en inglés, pero un poco (muy) raro hacer esto justo en esta discusión.