There was NO prenup agreement when Gwen Stefani and Gavin Rossdale got married. So he is legally entitled to HALF of her fortune during their marriage. But since he was the one who cheated on Gwen with their nanny (who also looked like Gwen, creepy) he’s not asking for more than what he is due or for child support either because she is the main bread winner.
They’ve also decided to split custody of their 3 kids 50/50. This seems to be one of the most amicable public divorces we’ve seen recently.