I agree with the above posts and am sorry that he won't even try to talk things through. Why is that ? How can things magically get better ? I don't advise separation, but an agreed plan of action. Write down what it is that makes you fight, get him to do the same. Talk, without accusation or blame. Tell him how his actions effect you and vice versa.
You're in this together, so work together. Is it small niggley things or major differences ?

Talk, hear, but also listen. Sometimes we hear, but we don't really listen. Compromise, give and take. Remember we all have faults, but mostly you need to communicate, in a calm way, without interupting each other or being hurtful or scoring points. It takes work, hopefully he'll see it's worth it. But it takes two of you to work together. Good luck