From Prankster to Forest

Julia was a bit of a Prankster.

As she entered her Senior Year of College, everyone knew not to trust her when she 'wanted help' or 'just needed you for a minute.'

One day, she made the wrong person mad.

She agreed to be 'kidnapped.'
She let herself be taken by the stranger, smiling the whole time.

She was never seen again.

Well, not at School anyhow.

She was seen by lots of people who visited The Forest.

Just a few years after her disappearance, she was a well-used Forest ****...

Who did this to her?
Why?