FWIW, I have seen this exact predicament time and time again throughout the course of my life.
You can either take it for what its worth ... or pass. The Hearing Impaired Individuals that I know, family and friends, as well as my own experience, has taught me that HoH people tend to get a hell of a lot more frustrated than the deaf. It may have to do with relying on information with faulty auditory receptacles .... one learns not to trust what one hears.
Well, if you cannot trust what you hear, how can you trust other people? Then, there is a childhood full of being mainstreamed because you are not considered to be "deaf" and therefore, categorized with hearing people. You are taught by your peers that you are slow and stupid.
You get frustrated because you know you are not and you get easily upset by minor things. You are treated much differently by your hearing peers because you can talk, but not respond on the same level of communication that a hearing person can.
Then, you go and look for employment after barely passing hearing mainstreamed schools. Can't answer the phone? But you can talk? I guess that means a lifetime of manual labor for you .... try to speak up? Ah! you misunderstood the conversation .... you didn't hear what I said right .... you got it all wrong .... No, I never said that ..... what did he say? Never mind, its not important .....
You get beat down ... a lot.