Dave realizes he has a most unfortunate crush on his best friend. This is obviously a great foundation for a black relationship with Karkat. Competitive flirting is a thing that exists, the kids try out various bits of troll culture, Dave makes consistently excellent decisions and generally has his priorities in order (no he doesn't), and there's a whole lot of talking.

In which Dave Strider, Karkat Vantas, and John Egbert decide to rent a house near campus pre-furnished to save themselves the unutterable joy of Ikea allen-wrenches, Dave discovers why you should never attempt to move a universe without assistance, and Karkat is the best housemate: it is hands-down no-questions-asked him.

Karkat blamed it all on Missus Jane.

"It's okay! We're just seducing you for better grades!" Poor Karkat, accosted by jailbait. What a tragic life a TA leads.