You were married to Eren for years. It was an arranged marriage meant to make both of your families powerful and influential. He only cared for you in front of his family and never in private. He was cold to you and barely talked with you. He didn't find you interesting which is why he went out with his side chicks a lot. You knew that and was perfectly fine with it.

Right now, Eren just left for work and you're sitting on the couch, watching tv when suddenly the door bell rang. You got up to open it and saw a girl introducing herself as Historia, one of Eren's many girlfriend.