The answer almost seems too obvious to be valid.
Women are women. And women are fundamentally, inherently different from men.
I know that sounds like begging the question, but it is a result of temperament makeup. Women, on the whole, are - excuse me - the "weaker sex," and are more fragile than men, who tough through hard times more often. That is why the woman most often enters the marriage relationship, for a protector.
these are attempts versus completions/
Women have always had more attempts, Men complete suicide more.
So there are more men who kill themselves, more women who attempt suicide...