is there a connection between gambling and divorce rate?
Depends on country because there are countries like India where divorce is frowned upon, so even if wife is fed up with husband's gambling habits, they'd still probably continue to be together.
It's retarded society I must say, because people tolerate much due to muh culture. (wow! That, 'due' and 'muh' rhymed well — guess, I can be a poet now).