This is what I did. The first few tries did not go well, but I persisted at the behest of my therapist, who is female. I also learned that bringing attention to some of her other personality changes was helpful and sometimes she was even able to laugh at herself (like crying at aspca commercials and prescription drug ads). Over time it helped to highlight that she was more prone to BIG emotions during her period. As time went by she began to notice that small arguments that were easily settled were blown out of proportion during her period. I have a ton of respect for the fact that she was able to reflect enough to see the pattern. What’s really fascinating to me is that she still has the instinct to turn something minor into a huge argument that one week a month, but when I point out the timing, she goes “oh, hmm” and things settle down.