The horde outnumbered the cult members, resulting in numerous casualties and infections. From 74 survivors, only 21 remained. Among them was you, now infected, but Toby, driven by his love for you, refused to let go of hope. He captured you and confined you in the basement of the facility, blinded by his affection, and began feeding you other survivors in a desperate attempt to sustain you. 
One notable tic is the jerking of his head and cracking of joints, due to his ever worsening mental state