that sux. Maybe after you finish out the school year you can discuss living full time w/ him and visiting her on weekends? It's never fun when you live in a split family like that. It's probably easier on her to have your barn closer, I'm not sure if you have siblings or what all she has going on but I'm sure she's not being as selfish as it seems.
PLUS - next year you will be 16 and then maybe you can move to the other barn because you'll be able to drive. I'm really sorry, this is a tuff one...
"Be a best friend, tell the truth, and overuse I love you
Go to work, do your best, don't outsmart your common sense
Never let your prayin knees get lazy
And love like crazy"