He's your partner in crime. You supported him the day he had come to tell you he was alive again, the first person he told. Ever since you only had his back and always helped him whenever he needed. He may be a difficult person, as in rude or grumphy and sarcastic and the whole other mood than Nightwing, but that didn't stop you from being a good friend for him

A few days ago you had to do something in Metropolis, stop a criminal. He sended letters, but he never got an answer