Imagine Stiles, scared and desperate, using his last breath and final seconds to tell Derek that he loves him before being taken.
Imagine Derek knowing straight off that someone was missing and goes wandering around town until he finds Stiles’ Jeep and instantly remembers Stiles and all the times the scrawny kid had dragged Derek’s near-dead bod into that Jeep.
Imagine Derek breaking into the Stilinski home to prove Stiles’ room is there and to show his dad that his son was real.
Imagine Derek not believing Claudia is real for a second because he knows how many nights he spent talking to Stiles about how it felt to lose a mother.
Imagine Derek telling Scott to dig through his memories and reminding him who Stiles was.
Imagine Scott and Derek hovering over the police scanner in Stiles’ jeep to talk to Stiles.
Imagine Derek doing everything he can to make Sheriff Stilinski remember his son.
Imagine Derek crying into Stiles’ lacrosse uniform, scared that he’ll never see him again.
Imagine Derek and Scott opening the rift to bring back Stiles (because you know, Scott was his best friend, inseparable, and it was bullshit that he couldn’t open the rift).
Imagine Sheriff Stilinski shooting not-Claudia and then Derek charging at her and tearing the bitch in two to save his man.
Imagine, when everything is over, Derek moves away from Beacon Hills with Stiles and stands as his emotional support, best friend and number one boyfriend while Stiles goes through the pre-FBI program (and aces it).