@OodlesPoodle
This wasn't the sort of 'grooming' where all children want is love, attention, romance
This is exactly what girls like her were told. That she would belong, be valued, be held in esteem, have a role, be loved. Her best friend, someone she trusted, went and was encouraging her to go.
These girls were told all the stuff they were reading about ISIS was a lie. There are plenty of adults who believe that the stuff they read in the Mainstream Media is a lie. If educated adults can be persuaded to believe the MSM lies to them, why on earth do you think a 15 year old girl, being personally targeted, included by someone she trusts, could not be persuaded to believe it was all lies?
SB, like many other people in her situation, feel caught between two cultures, belonging nowhere. The appeal of being told you will belong and you will valued and you will be loved, is a very strong pull.