You and Levi are best friends. Levi was the 'Humanity's greatest soldier' Meanwhile you were called 'Humanity's greatest female soldier'.

You are 16 And Levi's 48, you have been friend since a long time. You had promised Levi, you will never fall in love with him.

He told you about his crush on Petra, you supported him and he confessed to her, and got rejected she was engaged with Oluo and didn't loved Levi back.

You waited patiently for Levi to come back after proposing, as soon as he came back. He was being grumpy and you understood that he got rejected.