Not By A Long Shot

Ryan Ross intentionally broke his girlfriend's heart, with good reason. He didn't want to lose her to the process of becoming rich and famous, he never told her that he and his band got signed and left her without a word goodbye.
A few years later they meet again she ends up being their manager and is told to go with them on tour. Sure she wants to know the real reason he left, without saying goodbye but there's a catch. He has a new girlfriend.