The ghost girl was duped by a she-wolf in (really bad second-hand store) sheep's clothing. Take caution ghost boy, that she-wolf sheep runs around with more than one wolf pack.

I'm not calling you a liar, just don't lie to me
I'm not calling you a thief, just don't steal from me
I'm not calling you a ghost, just stop haunting me
And I love you so much, I'm gonna let you kill me