It seems like I was incorrect. The numbers from CDC are:
Wives petitioned for divorce more often than husbands, and were even more apt to do so when children were involved (table 12). Approximately 61 percent of the divorces in 1988 were petitioned by the wife, 32 percent by the husband, and 7 percent by the husband and wife jointly. The proportion of divorces petitioned by the wife was 65 percent when there were children involved and 56 percent when there were no children.For the case of my friends who have gotten divorced, all had it initiated by the wife. The fact remains that the great majority of divorces are initiated by the wife, particularly when there are kids