Have you done a recent credit report? You might want to do that before you have a conversation w/him about the new card. Generally credit reports will give you how much you owe and the limit on them. Try Credit Karma.com and it's free.
If the conversation were to come up, you could always say that you ran a credit report to see how your credit score was doing and then mention that there is a new card on the report and wanted to ask him about it before notifying one of the agencies that have the reports that it's false information and need to have it corrected.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
