Happy Ending?

Lolx, wondering why my title is recognized as happy ending ... well its seems that a problem has reached the end of it, feeling sad and happy at the same time and yet the feeling of guilty and regret still exist in my heart forever, I cant't replace this feel no matter how I do because in my life, I'm making a teribble mistake but its all over now ... In our human life, making decision is one the major act to be done in order to satisfy or to make an important decision for the process to be taking on, well what to say is think carefully before you move on to next step, a single mistake maybe overhelmed your decision thus ruined all the things you done before ... I'm the 1st one, ughzzz ...