The feelings are of anger, betrayal and regret possibly towards a breach
of a social contract between the lady and her longtime friend. She may
be talking to another person who knows both of them and has partly
witnessed the perceived acts of betrayal. The lines that stand out
are 'voices and minds have been incorporate' to show the level of closeness the two shared. Also 'though I alone do feel the injury also stands out' in reference to the hurt the lady has received as her partner remains okay.