There are these times when you're angry with someone but then you don't have a reason strong enough...You cannot show it and at the same time you cannot hide it..! Obviously they notice the changed you...and then you don't have an answer to their -"are you angry?"
During this "sort of angry" phase..you do not show your anger because it is of no use! Even when you've expressed your anger.. the other person doesn't do much to make things better! And somewhere inside you, a voice tells you that maybe you were expecting much more than they knew..!
though their question remains unanswered,but i'm sure they'll understand one day!