Mayato thoughts are confused, he has not confessed to Mina yet, so he shouldn't feel guilty about talking to Hana, even though he took for granted how Mina felt about him, she didn't know how he felt about her and he didn't really know what she felt for him. Very interesting, Thanks.

作品タイトルの　…裏切れた…　ですが
「切」の訓読みって、き(る)・き(れる)　なので
裏切られた　だと思うのですが如何でしょうか。
漢字ペディア「切」
https://www.kanjipedia.jp/kanji/0003984200
意図したものであるならば、ごめんなさい🙇

ルビ使うなり鉤括弧使うなりなんなりしたほうが良いと思われ