It sound like it might be about someone (Adelaide) who should get out of an abusive relationship, but doesn't: "black and blue dear Adelaide, so many scars to hide". The person narrating - which could be Adelaide - is ashamed of Adelaide (herself) because of this and wants desperately to get out of the relationship despite not doing anything to do that; it's like they know being with the guy is poison for them, but they can't make themselves leave no matter how much they should/desire to do so.
It sound like it might be about someone (Adelaide) who should get out of an abusive relationship, but doesn't: "black and blue dear Adelaide, so many scars to hide". The person narrating - which could be Adelaide - is ashamed of Adelaide (herself) because of this and wants desperately to get out of the relationship despite not doing anything to do that; it's like they know being with the guy is poison for them, but they can't make themselves leave no matter how much they should/desire to do so.