i am so sorry that you are having to experience this pain and loss. it must be devastating. if you have never heard of anger referred to as a secondary emotion it is because you have a primary emotion that you dont know how to deal with so you react in anger instead. so you may be feeling loss, abandonment, fear, mistrust......and you dont know how to respond to these so you are acting out in anger instead. perfectly natural and i am sure your t understands. i hope she does something to make the transition easy for you.