Tang was the one who started liking yang , even though yang was his brother when tang asked a romantic relationship he did not say no when they yang was going away from them Tang was the one who followed him and he called his mother and she keep on blaming yang because tang , i feel even though yang didn't do anything he is blamed because of tang , do is mother yang goes away from tang because tang cannot deside wt he want once he want mother and other time he want yang , after again tang is acting as if he sacrificed everything for yang when he was one who sufferd more than him