Excerpt from my latest Sasstrology post (please leave comments on the Sasstrology site):
"If you’ve been involved with someone with emphasized Cancer energy in her chart, you’ve probably been challenged by her moods. Sensitive yet volatile, one minute she’s hugging you, and the next she’s in sullen retreat. When dealing with the variable moods of a Cancer, it helps to understand where she’s coming from, and why she has these moods to begin with. Note that “emphasized Cancer” refers to anyone (man or woman) with personal planets (Sun, Moon, Mercury, Venus, Mars) or their Ascendant/Ascendant ruler in Cancer."