Mr Robot: 10 Worst Things That Happened To Elliot Alderson
10. Losing Angela
For four years, there were so many hints that Elliot and Angela would go from childhood friends to lovers, especially since they cared for each other and bonded over their shared loss of their parents due to the Washington Township leak, but unfortunately "401 Unauthorized" made it clear that the ship was destined to sink.
Elliot was so fully prepared to take down Whiterose and the Dark Army after he and Darlene were saved from their execution. But little did he know that Angela couldn't be saved as well. Unbeknownst to him, Angela was taken to Price's mansion where Price convinced her that Whiterose manipulated her and used her mom's death against to cause the cyberbombings just to spite her father.
She was wracked with guilt over her complicity of killing thousands of people, but this didn't stop her from declaring her vengeance on Whiterose and the Dark Army, which is what got her assassinated by the Dark Army operatives.
Whiterose later had a picture of her bloody corpse taken and sent it to Elliot as a reminder of who he was dealing with. This sent him on a downward spiral and a dark path to take the Dark Army down. Throughout the series Elliot has lost so many people that he loved, but Angela's death is what pushes him over the edge.