Where's the beef?

Heath and I had plans to meet at the junkyard and then have dinner. On my way to the junkyard, Heath called to tell me that they did not have the part and that he was going home. He was mad at me because apparently I was supposed to have called to make sure they still had it. I wasn't aware of that. I persuaded him to come over. I was a little distant because I was stressed about what I was going to do with the tire. He immediately gets on his computer. I keep waiting for him to get off his computer so we could go to the store. I sent him an e-mail stating that we needed to go to the store after the junkyard. Apparently, he opened it but never read it. He played WoW while I prepared dinner. After dinner, he played more WoW. I guess maybe if I was Flower, then I would consider playing WoW a date, but I'm not and feel it is a bit disrespectful. He has an angry outburst about not being able to go to Megan's for dinner because I would not pick up meat to grill. I was unclear about why I had to be the one to pick up meat and how I was going to do that due to seeing patients all day. I also don't see why, if he had wanted to go to Megan's so bad, then why did he not go pick up the meat. I guess part of me is upset because in all my other relationships, when grilling out especially when we went over to houses of friends of the guy, the guy always got the meat. I have never been to Megan's and since Heath does not like steak and turns his nose up at porkchops, I have no clue what to pick up. I think I now know the reason, he did not pick up the meat-he appears to be clueless about what cut of meat to get. I am shocked that someone who is still a bachelor at the age of 32, does not know how to grocery shop. I am not sure if I have enough patience to teach him.