@harleyshaw, there are several aspects to your wife's challenges with communication. I'm tagging a few people who may have thoughts from different perspectives.

@julieo4 lives with hearing loss and is familiar with people's resistence to hearing aids even without the complication of aphasia or cognitive impairment. Sometimes hearing loss can be the sole contributor to cognitive challenges. Other times it may be a contributor, but not the root cause.

@hopeful33250, often takes part in aphasia related discussions. You can see a list of those discussions here:
https://connect.mayoclinic.org/search/discussions/?search=aphasia
In particular, I think you'll see familiar situations reflected in this discussion as well as helpful tips and support:
- What strategies help you cope with behavioral changes in loved one https://connect.mayoclinic.org/discussion/cognitive-impairment/

It must be a challenge to not react when she gets angry when she feels you're not interpreting or understanding her correctly. I bet you are doing your best and have a high batting average for getting it right. Are you able to blame the disease and not get angry back? Hard to do all the time. Some of the time counts too. 🙂