Reiner buys you soooo many things. He never comes over empty handed. Whether it be little trinkets, blind boxes, CDs, jewellery or his favorite: flowers. He can NOT stop thinking about you whenever he's out and he can pinpoint whether you would like something or not perfectly.
Levi:
Levi talks through the language of flowers. He expressed his deep love for you through the veil of flowers.
Pink camelias when you weren't dating yet; morning glory after your first date and a bouquet of heliotropes, red roses and red salvias for your anniversary.
jean:
Jean brags about you to ANYONE who will listen. The way he talks about you is tooth rotting sweet. From your beauty, to your work ethic, to your intellect, to your quirks: there is nothing that he does not praise.
Armin:
Armin draws portraits of you. The pages of his sketchbook at first only see your face occasionally, but the longer you two date, the more drawing and paintings he has of you. Every curve and wrinkle is depicted perfectly with precision that makes the angles sing.
Zeke:
He filled multiple journals with poems about you after knowing you for less than a year. And even when poems aren't explicitly about you,your influence and the love he feels for you shines through every line.