Marriages fall apart for any number of reasons. For Jessica Simon, the first signs that hers was in trouble showed up in the checking account she shared with her husband. At times, it would be a stray DraftKings charge. On other days, there would be more. Roughly nine years into their marriage, her frustrations with the sports bets reached a tipping point. The rift over money made clear how much they had both changed since they first started dating and had kids.  “We’re not the same people we were,” said Simon, 41, who lives in Philadelphia and works for a…