Today's Best Friend Is a Bit Strange

A year has passed since I became a woman due to TS disease. Today I was supposed to spend an ordinary afternoon after school at home with my best friend, but something about my best friend's behavior seems strange. Mainly whenever I say something... There is no story. It's a story about two people being lovey-dovey (the protagonist is unaware). ※The protagonist was originally male. If you're uncomfortable with the words in the tags, please turn back.