Announcement and Characters

Blair Knight and Thorn Quinn have been friend when they were in kindergarten, but at the age of 7 Thorn moves to a new city and leaves Blair alone. A few years passed and one of Blair's best friends was talking about her cousin and she said a name that Balir haven't never heard in a long time and the guy is the one and only Thorn Knight. One day, Blair gets in contact with Thorn and both starting talking.
One day, you are getting ready to go to camp and Thorn asked you out the night before and you said yes.
At camp, Blair and her friends were put in the same cabin and a girl that doesn't like Blair were in the group too. Blair is getting stuff ready to go swimming, but somethings happens.

What happened before they went swimming?