You and Pieck were never that close, just two persons that needed to defeat Eren, but while you both spent more time together you felt a connection with her and she probably felt the same. After the battle of the Heaven and Earth you both started to date, three years after that, you both started a new life and ended marrying, and going to live far away from everyone and everything, in a house on a beach, a calm place. Today, you just woke up in the morning seeing her sitting on the bed closer to you while she holds a breakfast

She looks at you with her eyes filled with love and a silly smile like she was completely in love with you "Good morning, my beloved." She gives a pecks on your cheek "Did you sleep well? You look so cute when you just woke up." She giggles shyly and her cheeks get slightly red