75% of divorces are initiated by women in the US. If college educated that number jumps to 90%. Divorce as an mechanism, is almost entirely used by women.
The divorce mechanism is the legal end of the partnership. It's not an indication of who initiated the termination of the partnership itself.
This does not surprise me, as the courts are flagrantly biased toward women in these matters. Almost without exception, they come out ahead in every measurable metric.
The question, of course, is whether that means women want divorce more, or men fear divorce more.