YANBU.
I hate the way dh eats sometimes, but he doesn't seem to notice it with anyone. But even worse is when he drinks, at the beginning of a cup of coffee he always slurps for the first few sips, whether the coffee is too hot or not. Makes me murderous. He also has a habit of taking massive gulps when coffee has gone cold or he's having a cold drink. He then holds it in his cheeks for a few seconds then swallows it as if it is a golf ball, making a really loud gulpy/swallowy sound at the same time. I am shuddering just thinking about it. And don't get me started on his giant burps and ludicrous sneezes.
But there are differences in how/what he hears compared with how/what I hear. If there is something making a noise I can normally tell if it is the fridge, freezer, Xbox, PlayStation etc. but he can't necessarily hear them, never mind work out which is making the noise.
We had a new combi boiler installed last year, nice and quiet compared with the old one. When I am in the lounge I can often hear it on in the kitchen over the sound of the television. Or in the mornings it can wake me from sleeping upstairs when it comes on, even before the slightly noisier sounds come when the water starts moving in the heating pipes.
I can often hear the electricity buzz when a socket is switched on, or the faint sound the tv makes when Sky is off but the tv is still on.
I can also tell which of the 4 boys are coughing or sneezing upstairs, he often doesn't even hear them at all. It used to be me who always heard them crying overnight as babies, but don't worry, if he wasn't needing sleep for work I'd soon wake him for a turn at changing a nappy.
But he can identify music better than me, I am practically tone deaf when it comes to that.
We can rest assured that if someone tries to break into our house during the night I will hear them before they are even in the garden, I can hear everything out there. But I can also hear next doors kettle when they come in from a shift at work at 2.30am, wake me banging their front door closed and make a drink. It was lovely when next door was empty for a few months while it was up for sale.
So, if I need to work out what music is being played, dh can help. If we want to keep our home safe during the night that is where I am useful.