My ex wife did have a username here on DB and stalked me here while she was divorcing me, so I do understand that situation.
If there really are two of you posting here and you do not want the other to know what you are posting you can communicate with the moderators via the "REPORT" button.
We can not reply privately but Job has written the scenario as it now exists. I for one would like to sort this out and try to help you if that is possible.
If the two of you or (one of you) can not be honest here then the likely hood of you saving your marriage is nil. And it is something that you will need to deal with even later.