Midterms had everyone busy for various reasons; catching up on past assignments, working hard to get them and future assignments out of the way so they could fully enjoy spring break, and general studying.
The reasons above were why you didn't see much of Thalia and Eric. As a matter of fact, you never saw Thalia even after midterms, and you assumed she distanced herself from the group so there wouldn't be tension with the group.
But it turned out, as Jace told you one day, she was kicked out of the school due to her plagarism. Apparently she stole the first half of Eric's paper, and tried to get him expelled first. Thank goodnes Google Docs shows you when files were created and edited, otherwise Eric would've been in hot water.
A few weeks afterwards, the dynamic of the group seemed to change. You weren't sure if it was because of Thalia (which you were sketpical about, as you didn't percieve her as the nucleus of the group), or maybe it was just the general rise in crime around the campus area making people feel unsafe. Turning their minds towards other topics like personal safety.
You wondered if your friend group would be the same again.