But that was not the case.
He was jealous.
Jealous of seeing you and Eren together.
Only recently he started to notice how much he wanted you.
Well naturally, since you and Eren were both childhood friends, you two would talk to each other, hang out and help comfort each other when they are in stress. Though you were unaware of it, Eren has a very big crush on you.
But, you admired Levi Heichou since he was humanity's strongest soldier, a hope for everyone in the survey corps. He was handsome and you just loved everything about him.
~A certain night~
Eren had been dismissed from Hanji's experiments and he felt awful. You were there to accompany him back to his room but he couldn't stand or walk straight.
Leaning against your shoulder, he collapsed to the ground.
"Eren! Are you okay?!" You moved his body so it was leaning against the wall.
"[f/n]... I d-don't think I can do this anymore.
Around the same time, Ludwig and Gilbert walked out of their tents wearing the same uniform as you. Unlike you and Ludwig, Gilbert had a bomber jacket thrown over his disguise. "Check it out Frau!" Gilbert propped a leg onto a nearby crate and gave you one of his showstopper diplomatic poses. "Do I look American yet? Kesesese!"
Gosh dammit, he didn't look American but he looked hella hot.
You continued to stare at him with your mouth agape in awe at the fine gift the heavens had bestowed upon you while Ludwig folded him arms, unamused. "You look suspicious."
"What? But I have the bomber jacket, the laugh, and everything!"