Dont Do This To Me!

Side 1 says... ok my boyfriend complains all the time well most of the time he drives me crazy. He is great most of the time dont get me wrong but he just needs to calm down and stop being negative. im getting sick of it and its just depressing.EX:"hey,honey how your day?"i say."Ok this butthole took my parking spot, i left my briefcase at work,the dog peed on the rug, i had to do dishes and we have nothing to eat."he says. "Preston,i told you we have pizza that you can cook in the oven,i know you have had a rough day and im sorry but i just idont know."i say. end of conversation thats it . i have no idea what to do about the negativity. how do i brighten his outlook on life??? i need help!!!