The problem is rarely about what your stupid male mind thinks it is. All you’ve done is given her something to beat you up with but that’s irrelevant. You need to work out what it is that wound her up before this. Unfortunately that knowledge won’t help you because the only thing worse than upsetting her would be letting her know you know what’s upset her.
There is no right answer. Forget all the reasoning. If you want things to get better you need to accept something is your fault and apologise. Listen to what she has to say about that. Ask her what she would like to do. Don’t say that’s what you’re going to do though. Best bet is to nod sagely and agree. Unless she asks you what you want to do. Then it’s whatever she said.
I feel embrassed telling you this stuff to be honest. I’m not that much older than you and doubt I’ve been married that much longer.