[Eren's response isn't instantaneous. He's been waiting for someone to show up, desperately hoping it would be Armin, or Mikasa. (Hell, he'd even be happy to see Jean. He was just...so lonely, even though he would never, ever admit it.)
But despite him spending so much time hoping for his friends to show up, and despite him actively scouring the city every other day, he didn't ever think to look on the network for their faces. Then again, he couldn't even operate the damn D-Terminal. It had been his Tentomon who had been watching the various network posts, and once he heard Armin's voice through the speakers he had almost tackled the lady bug over as he reached for it.
And that's the sight that greets Armin as soon as the video starts - Eren half covering his Tentomon who's still holding onto the D-Terminal, leaning forward as close as he can get without crushing the digimon too badly.]
[video]
But despite him spending so much time hoping for his friends to show up, and despite him actively scouring the city every other day, he didn't ever think to look on the network for their faces. Then again, he couldn't even operate the damn D-Terminal. It had been his Tentomon who had been watching the various network posts, and once he heard Armin's voice through the speakers he had almost tackled the lady bug over as he reached for it.
And that's the sight that greets Armin as soon as the video starts - Eren half covering his Tentomon who's still holding onto the D-Terminal, leaning forward as close as he can get without crushing the digimon too badly.]
Armin! You're finally here!