Memory Falls- An Original Gravity Falls Billdip Fanfic (Old Version)

(This is the old version, the new version is currently in progress)
Mason Pines, now just two months away from turning 18 years old, is finally fed up with it all. After his parents divorce when he and his "twin" sister were 14, they got split up, and it was never the same again. Mabel got spoiled by their mom, and forgot all about him. Mason, meanwhile, went with thier dad, and while his dad loved him very much, he would never understand anything- the bullies, how he felt about his sister, or the divorce, or anything else.
So he finally makes an escape to gravity falls, only to crash his car into a tree. He loses his memories, and well, the rest you have to find out for yourself. Also I know Dipper is out of character, but he will be more normal when he gains more of his memories.
I dont own Gravity Falls, or the characters, but this is an original fanfic. At the moment the cover isnt mine, but I will try and draw one at some point. MEMORY FALLS IS AN ORIGINAL CONCEPT. PLEASE ASK ME IF YOU WANT TO USE IT.