yeah ang i have no idea what you can do, you should have just told him the truth to start off with, and you also could have not made the lie worse, you could have just said "oh you must have misunderstood me, i am only 13 and not 14," that you could have pulled off, but now that you have failed a grade and you have moved from a different town. Now what is he gonna think, that your dumb and you dont ahve many friends. Ang why do you get your self into these kinda messes. Anyways try not to lie to him anymore, you'll just make things worse.
-Cya