There's Prestwick as well, with a few ATCs, but still over 3hrs drive to Aberdeen (if it's not winter).
Look at all the places you could get posted against those close to you. The odds are against you on being able to stay close and certainly not for a full career. You might manage a few years of stability at one location but have to move if promoted etc.
Look at what you want out of life and if being within a 3 hr drive of your girlfriend and house is high on the list, the Armed Forces might not be for you.