it genuinely makes me so happy seeing bisexuality being included in a story like this
also there's a whole ass essay to be written about the commonality of misogyny and homophobia towards women in bl, so I think that it is super important for the medium as a whole that a story like this is able to depict a queer women in a heterosexual relationship without taking away her identity as a queer women!!!
hot take I think the blondie continues to live and the picture frame being turned over is them both being able to move on from trauma caused by the father
thats what the picture frame symbolizes imo