Eren and Armin: best friends since childhood
Eren and Armin: thought to be too close by all of their friends
Eren and Armin: are confirmed by Levi himself to have their own secret language and dreams that no one really understands
Eren and Armin: held hands a lot, have hugged, and have generally nome problem whatsoever with casual touching and being in close contact
Eren and Armin: inspire one another and share the same life experiences and match each other personality wise due to Armin being the calm to Eren’s Storm
Eren: actually died for Armin one time
Armin: has dragged Eren out of a burning Titan, broke him out of a fevered trance just by speaking to him, and sat in his hospital bed
Eren: was only able to understand how caged he was by looking into Armin’s eyes and has desired freedom ever since because of what he saw there
Levi: hands Eren a napkin
Ereri shippers: OMG look how in love they are, oh my goooood, so much sexual tension my ship my SHIIIIP do you see it it’s sailed bitches Ereri forever