Hi OP,
I went through a similar situation, but I stayed.
By the time I seriously considered breaking up the relationship it I'd tolerated 5 years of neglect and verbal abuse. Trying to describe it now so cliched and yet so intolerable. I'd spend each day grinding away at my job, return home to chaos and be expected to cook and serve dinner in twenty minutes, had no time for hobbies as when at home (and not cooking) I was cleaning the house, organising the kids, paying the bills, and falling asleep from sheer exhaustion. Apart from doing the laundry, DW's contribution was to kick me out of the marital bed and call me all manner of names and row with me in front of the children. I ended up self-harming. Her behaviour towards me would certainly be considered abusive. She was unable to hold down a job, and eventually gave up, and instead started a business which failed to make any money over two years as I think anyone other than her could have foretold. There were occasions when she slapped the children and I had to step in, which caused all manner of ill feeling as she insisted on having her way in everything relating to the children. The acrimony would last for days each time we had a disagremeent. She was in a bad way, but there was no way I could help as she had taken everything I had to give, financially, emotionally and even physically, considering how exhausted I was. I gave up suggesting she seek some kind of help, as in her view any bad thing was caused by someone's fault, and that someone was never her. Five years of the names and the scenes left me with nothing but weary contempt.
I certainly told her that I was contemplating leaving, but I don't think she has ever realised just how close run a thing it was. Her reaction was quite different to your DW - she thought I was just being a massive idiot as usual, although I think she was probably panicking.
Why did I decide to stay? Because (and I admit, after a lot of discussion with a very helpful confidante), I thought, fuck it, we're a family, I'm going to make it work, and I'm not going to let DW get in the way of that. I reduced my interaction with her to the basics so that I wouldn't be hurt by her - and when she asked me what I was doing, that was the reason I gave: and that I wasn't going to tolerate any more arguing in front of the children, I wasn't going to tolerate her insisting that we 'talk' (if that meant her ranting at me) and if she was going to play up, I was going to flat out ignore her, which to my surprise I found I was able to do. It was very empowering. Basically I grew a very large pair of balls and had to reject a fair amount of what I was brought up to be in the process.
A year on, things are much better. I'm still the main breadwinner and I still carry a heavier burden of family than she does. I think she has realised that I'm not emotionally dependent on her enough for her to hurt me now, and that I could cope just as well without her even if I had sole custody of the kids. She also knows that in a divorce she wouldn't get sole custody or the house without my agreement. So she has a much more realistic idea of where she stands. We have even started to become affectionate again, but in a way very different to before our troubles began. She can still be an idiot sometimes, but she knows when to back off and leave stuff now, and as a result, my marriage is now far more than tolerable, and definitely strengthening.
It was right not to end the marriage. I'm sure that our kids are better for it, and I also feel I have control over my own life and as a result am much better able to carry out my responsibilities as a father. Yes, there are moments of stress, but they are getting fewer.
What you do is of course your own choice, but the point to make in all this is that you could find happiness by leaving. However, you could also find happiness through the self-esteem you will gain by sticking it out and making it work and through that you may find a new way of loving your wife.
Whatever you decide to do, all the best.