Wow, something I'm actually qualified to answer to. My parents almost literally hated each other from the time my little sister was born (Circa 2000) all the way to the time they *finally* separated last year in the Summer. It was the biggest relief of my life. Now, everyone's situation is different (you don't seem to be fighting with your husband as much as my parents did toward the end, but they started off in your situation, just acting like they still loved each other), but coming from a family like that, there's a pretty good chance your kids know that mom and dad aren't really on the up-and-up. They're usually smart like that. I'd say, if you're really not happy in the relationship, the only thing to so is to go through with it in as calm and sincere a manner as possible, and make sure visitation is smooth, easy, and organized so that they can still keep a good relationship with both you and their father. Currently I'm a 2 hour plane ride from my dad and little sister, and it's been really weird for our relationship, but it's not been so bad since I see them often enough (we switch off holidays/breaks every year, and I visit them on long weekends when there's no holidays for a while). My mom, however, has been **way** happier since she moved away with myself and my older sister, and it really shows, and I feel much more comfortable as a person because of it. Even seeing some of my family less has let us all grow closer in small ways. I was depressed and anxious for years just because I had to be around my parents so often. Seeing them try and pass it off as if everything was fine was infuriating and horrifying, and I hated feeling like I had to walk on eggshells or something would bust and one of them would get unnecessarily angry from all the pent up feelings all over the place. I went from being about to flunk out of high school to actually working hard to get into college, because with the lack of stress, my future just didn't seem so bleak anymore. I guess the bottom line is that this isn't something you should leave alone for the sake of your kids. If you raised them right, and you don't do anything drastic, everything will turn out just fine, and they honestly will probably live better lives for it.