When I used to get into some sort of disharmonious (understatement) mood, I would shut myself away from everyone. I think this is particularly important to protect your relationship. The trouble with actually living in the same house with another person is that it's virtually impossible to withdraw completely. Me, I would want to argue, justify, blame, you name it. My solution is not for everyone -- I know I cannot live with anyone at all. Not roommates, not spouses, not my boyfriend. I MUST have my own place. Or at least my own hidey hole somewhere. It's much easier then, no matter what the cause of the rage is. Two other things: Those close to me, I have instructed them if I am leaning on them too much -- depression, negativity, anger, or whatever -- they are to allow me five minutes to talk on the phone. Then, they are to say, gently but mean it absolutely, "Synergy, we've talked for five minutes. Now, I'm going to hang up. If you still need to talk in 15 minutes you can call me back." It was hard to convince those who love me to take this action. They said, but you NEED to TALK about it. I said, "Does it help YOU? Do YOU feel good when I talk like that." Of course, they say, no, it does not feel good to them. I say, "It's bad for ME. Therefore it's bad for both of us if I talk longer than 5 minutes." Just making this agreement has helped me SO MUCH. I don't think I ever once call them back in the same out-of-control mood. It helped me to look at myself realistically. Maybe that tactic would work for you. Or, maybe your fiance will agree to leave the house and go somewhere else for half an hour, and absolute NOT put up with your extreme moods. Otherwise, imo, he'd be being an enabler, and would not help you in the long or short run.