When she's angry and wants to be alone, let her be alone. That's my only advice really. I have serious anger issues on occasion, the kind where I go into a room and slam the door and throw stuff around and my husband knows to stay away (it's never me mad at him, it's just me having usually life frustration rage). Also, when I'm upset, I hate crying in front of my husband, so I go into a room by myself and bawl, and he knows to leave me alone.

We've been together for eleven years, and he's learned that when I get that way, it's not something he can fix.

Only advice I've got. If your wife wants to be alone, let her be alone to let out some emotion.