So to get the backstory and magickbabble
out of the way.
Valerie Campbell has a good reason for pushing away both
Shawn and Adrian.
She's twenty five now but twenty years earlier when her brother
Robert has still be physically alive five year old Valerie Campbell and seven year old Robert Campbell had visited the shop
looking for a Ring or other device that would allow them to swap
bodies.
At the time puberty hadn't hit yet and the original reason they wanted to swap bodies with each another had more to do
with improving grades in school.
As we know boys are made of puppies tails and stepping on
nails and Girls are Sugar and Spice and All Things Nice
So Robert in Valeries body meant he,as she could nudge up the sisters
grades in phys ed
and she,as he could suddenly make possessed Robert better at singing,sewing,artcrafts
etc
Quite a sensible arrangement for two pre-puberty brother and
sister