Hmmmm, maybe that is my issue. Resentment.
spoiler (click to show/hide)
Lately, I've been tuning my wife out a lot when she goes on with her stories. She can go on for 20 minutes(or more) with backstories of this and that that have nothing to do with point of what she is trying to say. It's fucking annoying! So much so that I either do the 'moving along' gesture with my hand or just interrupt her asking if this is an important part or if she is just rambling. That pisses her off and sometimes rightfully so, but I don't give a shit.
Another annoyance is when this happens. We can have a 2 hour car ride and barely say anything which is fine because I like to concentrate on getting a family of 5 from A to B safely. But when I'm on the computer or watching something on TV she will just walk in and start up the gab machine. She talks loud as well. She is a teacher and she is probably used to being loud having to talk over 20 kids. She gets mad if you tell her to quiet down.
Anyway, maybe it's just 15 years of marriage and all the ups and downs that come with it that made it what it is today. So brehs, if I have a list and it has caused some level of resentment, how would you you go about eliminating it?
My marriage is fine otherwise.
Identify what's causing the resentment and try to lessen it. I don't think that your wife's conversations being pointless* are the problem in and of itself. The overwhelming majority of what we talk about here (actually, everything we talk about here outside the Taco Bell thread) is utterly pointless yet you're not a cantankerous poster.
If I had to venture a guess, it sounds like you've got too much going on at the moment and you're not getting enough rest, recharge, and reboot time. (Sensitivity to volume, preoccupation with time waste, and so on. I have the same problem on the reg.) If you can't do anything about that (e.g. cutting back at work) you're going to have to suck it up and communicate that to the fam so they can help you get what you need, even if it means they don't get what they want or need. I am reliably informed that this is what fam is for.
The hand waving thing and interrupting are really nasty behavior. I think you realize that even if you're at the point where you #dgaf. Hopefully you can come back from that.

*Is it really pointless when your loved one is trying to include you in the details of their life, no matter how mundane they might seem? And don't give me some whack jaded dad / husband shit in response to that question, jaded dad / husband Bore, I C U.