[EP4 SPOILERS] So... What ever happened to ____?

Evan? Where'd he go? We only really saw him in episode 1, since then we've seen the back of his head on a bus a few times, but he's been completely absent.

This is Evan Just in case you forgot.

I don't think he was in Episode 4 at all, when literally like every single other character was accounted for, either at school, house, or the party. We saw his room and whiteboard at the dorms, but that's literally it.

Where art thou Evan? I don't get it.