Regret...move on man. To be honest, you screwed it up big time. I'm sorry but it sounds like there's more than just this under the surface. I agree DarkNeko. She was using that as an excuse or it was the final straw, but she's definitely not happy about more than one thing if she walked out on you for an old grievance that you were originally forgiven for.
And out of curiosity, how long exactly have these marriage talks been occurring?
Time is a great teacher, but unfortunately it kills all its pupils ... - Louis Hector Berlioz
Gene Police: You!! Out Of The Pool!