A) Report him/her to the credit card fraud service that contacted you concerning the fraudulent charges.
B) Forgive and forget - life's too short.
C) Stand strong. Don't report him/her, but don't talk to him/her, either. He/she needs to learn SOME kind of lesson.
D) Confrontation at its finest - call him/her and straight up ask why he/she hasn't apologized and it's been over a month since the incident. Maybe yell a little.
E) Forget about it for now - but don't forgive. Your relationship has been irrevocably altered.