Im really sad and even till unhappy about something. Its like this.

Imagine you are one of the regular members in a soccer team. In this team, you actually lead the players in training, and you teach them how to play. Yet, when the coach has decided the 1st team, he didn't include you in it. How do you feel?

I just don't understand. Maybe i take it for granted. But its just, why? i don't get it.