I have a close friend who was temporarily living with her long-term bf (his place) - they were seeing what their future could hold. I visited for a couple of weeks and one day the bf, who did all of the cooking, asked us to pick up some groceries on the way home from our touristy stuff. No problem! We went in, grabbed a couple of things, went out. When we got back he asked where like 3 of the ingredients were - she had just skipped over them in the list and didn't even notice. I was shocked like oh no, let's go back out and see if we can't get them before he's to that stage of cooking. She had just sat down on the couch and said "nah he'll go back out since he can drive" (we were relying on public transport). She didn't apologize, didn't offer to go with him, and apparently this had happened frequently enough they both knew he was just going to go handle it. 

When he broke things off about 3 months after that I couldn't even act surprised. Who wants to deal with someone who can't even help with regular groceries?