Hi Tanya
Well done on not reacting.   It is less stress on you and less energy wasted on an addition that is not ready to listen.
He probably isn’t trying to buy his children.   The addiction to gamble is incredibly selfish but when it is controlled amazing people can emerge and it is only then that the non-CG can know what is truly in the heart of their loved one.  
Bravo to your reaction.  I hope your weekend is peaceful.