Eruri is Canon with Canon Reasons

so Levi x Erwin is indirectly Canon guys! Im providing logical reason with what make sense and whats don't. I respect all shippers but bashing other shippers or desperately investing ship that never sail is not cool :/ so I made this!
this is a visible proofs without fan made theories because Levi feelings towards Erwin is as clear as day but some people choose to play blind over it ahahah, like its not so difficult that you need to find the slightest hint and making up theories to make it sound logical.
I provide sources and website link to where I get all the facts and statement