If you're thirteen wewe have no say in whether au not your parents want to move...if wewe really want to keep your girlfriend make it long distance, if not break it off.
this sounds a lot like the situation i was in. my dad was making us songesha across the country and my girlfriend begged me to stay. i tried convincing him to stay but it was no use. we kept a 6 mwezi long-distance relationship, but then she broke up with me because it was getting too complicatd. i came back to visit, but when i left she broke up with me again. if wewe really upendo her, keep a long distance relationship. until wewe can songesha back and see her again.