The BAU was investigating a series of serial killings, where the unsub would torture their victims for two days before killing them, and unfortunately, you were the unsubs type

He had put you through 4 hours of torture, always making sure not to kill you, until the door was kicked in by Morgan as he chased the unsub out the back

As Morgan passed you, Spencer, (your boyfriend) saw you, lifting you off the floor as Rossi untied your hands