I kind of remembered him surprising her with the divorce filing.. did a search and found this blurb...
He's a jerk..IMO
The cruddiest timing
Back to Tom Cruise again - he filed for divorce from Nicole Kidman exactly three days before their 10th wedding anniversary when, under California law, he might have become liable to pay her support for the rest of their lives.
Kidman was reported to be blindsided by the timing, but the couple later split assets, and custody of their two children, amicably enough.