How to Win my Ex-Girlfriend Heart Back?

I would go visit her...yes you said it was 15 hours away but take a whole weekend off if you can...it would mean alot to her if you put in the effort to show how much she means to you...a cute surprise visit that took 15 hours is kinda romantic. Also be friends with her but show her how you can be more then a best friend. Treat her like a princess if you don't already. And on the nights she is gone maybe if you have it skype her or call her on the phone since texting takes away from the true feelings and reminder her every now and then that you love her GOOD LUCK!!