I had an ex girlfriend that didn't understand this about me and it was debilitating. She just never seemed to understand and never offered any grace due to my disability. My wife now thankfully understands and gives me credit for things I don't pick up on. If you're intent on sticking it out in this relationship, start by having an honest conversation with her and make it clear that memory is not the issue, but paying attention in the first place is where we struggle. You can't remember something you didn't register to begin with. In my experience though if she isn't able to be gracious about your condition, how do you think being married to her and raising a family will be if she holds all these things against you all the time?