If this is the only way that you feel that you are being disrespected, then I would try not to take it too personally. If, on the other hand, there are many other ways you feel that he is disrespecting you (Doesn't listen, interrupts, demands things, overall just plain rude) then I would re-evaluate why you are with thisi person. But again, like I said, if this is the only problem you are having, perhaps try to see it from his perspective. My fiance, whom I love dearly, can't remember anything to save his life. It is nothing personal, he simply can't remember. The number of times I ask him to do something really has nothing to do with him respecting me or not. I can understand not wanting to do something right away if you're in the middle of something or about to start something, and then simply forgetting about what was asked of you when you finished what you were already doing. My fiance is also extremely stressed about work, so that's constantly on his mind which doesn't leave much room for anything else. Just try to keep in mind, that perhaps he really, truly does forget, and needs extra reminding -- don't take it personally unless he treats you poorly in other aspects of your life as well.

Perhaps you two could try to set aside a day of the week when the two of you take care of the things you need to do together. Make a list, keep it on the fridge, and then when, say, Saturday at 3 pm rolls around, the two of you stop what you're doing and work on the list.

Good luck! You're not alone in this frustration, I promise!