Maybe they both should! But dealing with feelings is still prone to that old adage: we don't do that here. This is as close as Eren gets, at least for now. It's a slow crawl back to being (mostly) a human being.

Eren glances at Levi telling him not to worry about the couch. Of course he knows Levi is more than capable of setting aside his thing about dirt or germs or blood. How many times have they been covered in all manner of gross shit, and Levi more than most? He's aware of at least some of why Levi can't stand to be dirty, why he tries to control his space so that it's spotless. But unlike Eren, Levi can put aside his neuroses to care about someone. It isn't lost on Eren, that he matters more than cleaning something. Sometimes he still thinks he doesn't or shouldn't, but he's kind of accepting that Levi still cares more about him than he probably should.

All of them do. They always did, wasn't that the problem? He's never been able to see that.

"…sure, Captain. I'd like tea," he says. That's Levi's sort of love language, sharing tea with people (who have earned that privilege). It's comforting because it's something thoughtfully offered, something familiar.