I think Dazai-san is trying to make me feel better by talking poorly about himself.

[Just. Putting that out there. 'His' Dazai and the Dazai in front of him are different people, but they both share that personality trait.

Sort of. 'His' Dazai just liked to put himself down and didn't necessarily do it to make Atsushi feel better. Not when Atsushi didn't need to be manipulated into doing something.]

And it's not working. Because Dazai-san is important to me, so when he puts himself down he's making me feel worse. That's my 'difference in perception'.