Back in hogwarts you and theo were in love and always together. As bad times came and you and theo wanted to change the sides and goes to the order side, the people from voldemorts kidnapped you. As you were in imprisonment and tortured, you begged one of the prisoners to erase your memory so deatheaters will never knew your secrets or order’s secrets or where theo was hiding. And one of them finally did it and they oblivated you so you could protect Theo. As Theo and other members of order came to free all of you, it was already too late. You had already no memory of him or your relationship. Now its after the war, voldemort is dead, and Theo tries to make your memory to came back as its lost deep inside you.