Expectation and Disappointment

When you promise a person for an event and out of a sudden you change your mind not go for the event, that could be the worse thing you can ever do to a person. Especially when you break your words that you gave to your best friend. =( I just did that, a few hours ago and I am not over it. This could be the thing that I regret the most although it may sound like a small matter. I really wanna say sorry to him. =(
I broke the trust, promise and also the expectation of my friend. It doesn't sound good, because I knew what could be the consequences. The worse thing is ever to realize that my friend would have been disappointed with me. I am really sad and I wish things would have gone according to the plan. If there were no changes, no one would have got hurt. =(
I really want to say sorry , coz I feel very bad. Thanks to my friend, for his big heart to forgive me and talking to me.

Reminder

She said when i got 19/20 she was impressed and had high expectation, bt when I got 39/100 then she thinks I will fail the paper.. I cant get it out of my mind..
I need remind myself to graduate within 3 years!! I must graduate as soon as possible!! No more screwing up papers...