Leaving (Chapter 1)

After the summer break, Dipper and Mabel went home. Dipper made a friend he trusted and told all about what happened over the summer. The next day Dipper found himself in an asylum. Three years later and he's going back to Gravity Falls with Mabel.
What happened to Dipper over the three years?
Will he ever forgive his family for letting him go to such a place or will they forever be on his bad side?
And will a dream demon come back for what was rightfully his? Read this story to find out!

This is my first Gravity Falls story so I hope you like it!
This is mature just in case something does happen in the story.