Are there kids involved, I only ask cause that will complicate the matter greatly if there are. I have been divorced once, best thing that ever happened to my life. If not for it, I would be stuck in a loveless marriage and would have never met my current wife or had my sons, or the daughter to be born next week!!
There can be plenty of things going on that you don't want to discuss here that will affect your decision. My ex and I truly didn't like each other, only got married cause it was right after college and it seemed like the thing to do. Even fought on the honeymoon
Here's my advice, if you are going to get a divorce you have to make your mind up and commit to that path. Once you go that direction there is no going back and no making up. My divorce lawyer told me the first day in his office, "son, you won't make any friends in a divorce". He was right, whatever love you may have had will dissappear quickly once it begins. Financially speaking, it will depend on length of marriage, here over 10 years constitutes a "long standing marriage" and alimony becomes an issue. Under 10 years and there is no alimony, child support is a different thing, like I said earlier, kids will complicate things (I didn't have any with my ex-wife). Find out what your particular state laws are, is it a community property state (this is a big one), if it's not then there is no 50/50 rule. Here, equity in equals equity out, in other words you may have to sell the house, but you get to recover your downpayment before the rest is split.
In the end it is a decision only you can make. Life is too short to be miserable. Make a desicion and stick to it. There is no middle in a divorce, it's either one direction or the other. If you decide to work it out, give it everything you have, love her like there is no tommorrow. If you decide to divorce her, RUN, don't walk, don't pass go, don't collect two hundred dollars, just get a great lawyer and get out.