Somehow,he got obsessed with you-to the yanderish point.He wants you as his plaything,as eternal friend/enemy/lover.He is the sadistic and manipulative type,willing to hurt you,guiltrip you,mutilate you,just so you will stay and listen.
Error destroyed his sight to the point that without his glasses he is blind.
Error has haphephobia (the fear of being touched) and is therefore very hesitant to get physically close to anyone.Glitches more when angry.He loves chocolate.Likes knitting.