Why does my bf have to take his bad mood out on me?

He shouldn`t do it. He`s taking you as a punching bag. He needs to grow up and face life as it is. We all have problems but making the best out of it must be our goal. I wouldn`t take it...I`m not willing to listen when people throw dirt and complain. I`m sure you`re a good listener and can support and give affection, but you don`t have to take all the garbage from the others..no matter who they are. Let him know that..that is called respect also. And please, don`t be upset you did the right thing!--He should apologize...he`s spoiling your day..cuz he already spoiled his!. Don`t let that happen anymore...and enjoy your day, please!!