I think loss of hearing is a bit like a mini-bereavement, you have to go through denial and anger before you finally come to acceptance and seek help. I had many years of having to repeat everything for DH, being accused of mumbling all the time, TV up uncomfortably loud, his reluctance to go to social occasions. I hated it when travelling, I would want to share experiences with him eg 'look at that bird' etc and by the time I had repeated it, the moment was past.
Eventually a combination of his children and grandchildren got to him, and he went off for a hearing check. Spent some of his savings on digital aids which fit inside the ear, the only visible bit is the fine wire, which looks just like a grey hair, running out of his ear to the tiny behind the ear controls. I can tell instantly when he has forgotten to put them in, and so can the grandchildren, who have no hesitation in reminding him.
It is a relief, because he couldn't hear what the little ones were saying, and when he was looking after them, that was a bit dangerous. It has transformed my life, I had got to the stage of ceasing to talk to him about anything but essentials because I was fed up having to repeat everything. Do ask others to explain to him the benefits of using aids, because he probably won't take it from you!