So many people argue about money. My W and I have kept our seperate accounts the whole time. We transefer money back and forth to each other to cover things but she had hers and I had mine.
NFTP, If you talk to her agree with her. Validate her feelings about the money issue. She most likely saw your argueing with her as trying to control her. Seperate your credit cards, all of it. If she gets herself in debt its not your problem.