For those that follow, there has been an update.
https://www.fanfiction.net/s/13170271/1/Back-In-Sync
I didn't know Pandie were left handed! For a title, here's some ideas:
"Because you never forget your first love."
"My life began when I met you, Andie."
"You're the one, Pacey."
"Because she was the first person to believe in him."
Because Josh wore a picture of Meredith on his shirt at the 100th episode party
Because KW said it was originally Pandie as endgame
Because Pandie were getting married in early drafts of series finale