Athena's Links
Athena loves her older sister, Howler. While sometimes Athena can be childish and wholesome, Howler is pretty edgy and much different from her, but she loves her.
Athena thinks of Ginny as her sister and more than just her host. She cares for her and has died for her in the past when the transformation was so rough, that it would've killed Ginny if Athena wasn't able to stop it.
Ginny is the original while Athena is her cursed form. While she loves Athena like a sister... the pain she endures every night in order to transform is terrible.