Rock and Hard Place

Like everything else in my life, the most beautiful things happen at the worst time! lol I am so happy because I finally got what I wanted but it sucks because I've kinda made another commitment. I never know what to do in these situations. Do you keep your commitment or satisfy yourself?? Do you let yourself down as well as the most important person in your life?? Or do you let down someone you've become so close to, who has proven to be very nice indeed?? I really want to blame him and be like 'well you should have made your mind up faster' but I should have been more patient....

Its always like this with me I've come to accept it and I think on some subconscious level I know what I'm going to do...I hate it already