“Credit card companies are not bound by divorce decrees, so they can pursue either spouse if credit card debt is not paid by the spouse who agreed to do so in a separation agreement.  The contractually bound spouse may fail to pay for many reasons, including bankruptcy. When such failure occurs, credit card companies may legally pursue the other spouse for the debt (plus interest and penalties).”

The full article can be found here:  http://www.huffingtonpost.com/entry/divorce-and-credit-card-debt_us_58e28f26e4b09deecf0e18bc