So, yes, he has a reason to be angry, I did murder him or at least help Aegisthus murder him.
He should not have been surprised really. If your girlfriend is a clairvoyant and you ignore her. If you bring her home to wifey. And if you have murdered your own daughter to further a ridiculous and costly war, well, I would say you had it coming.
I know. If I was going to be “honorable” I would have no boyfriend, challenge Agamemnon to some test of the gods and then pray he gets zapped.
Tired of gods and the ruthless things they tell men to do. I miss my child, my life, my hope, and if I made him keep his eyes open as his life slipped away–I still can’t say I am sorry.