[Eren's skin goes clammy and cold as he hears those words. Damn Armin for sharing something so intimate with her; now that he's heard the message, he wishes it were a plea instead. He's eager to talk about The Rumbling, to beat the dead horse. Anything but this.
[It's difficult to keep his expression even. There's emotion in his eyes - real emotion that he couldn't dull if he tried. He's so angry at him. And then, of course, there's the grief. Eren likes to tell himself that Armin can't talk him out of anything like he can anyone else - he won't talk him out of The Rumbling, for example - but to feel so affected now...it's more than disquieting.
[He's stood there, quiet and dumb, for the past few moments now, entirely lost as to how to respond.
[Finally, the edge to his voice as dull as a spent blade:]
no subject
[It's difficult to keep his expression even. There's emotion in his eyes - real emotion that he couldn't dull if he tried. He's so angry at him. And then, of course, there's the grief. Eren likes to tell himself that Armin can't talk him out of anything like he can anyone else - he won't talk him out of The Rumbling, for example - but to feel so affected now...it's more than disquieting.
[He's stood there, quiet and dumb, for the past few moments now, entirely lost as to how to respond.
[Finally, the edge to his voice as dull as a spent blade:]
You need to mind your business.