Do you still have hope for your marriage? Do you want to stay married to her?
I took my ring off for a couple of days (W carelessly lost hers a few months ago and had taken off her engagement ring months before that) but it didn't feel right given my position on saving the marriage. Just because she is not honoring the commitment doesn't mean you should copy her (two wrongs don't make a right and all), unless you too have ended the relationship in your mind as well.
WAW Using God Me-43 W-40 M-14 S-11 S-9 D-7 EABomb 5/09 Separated 12/09