Welcome.
Im confused and dont know what to believe.
First off, you'll need to find out what is going on, so start snooping. When and if you find out that she is having an EA(emotional affair) or a PA(physical affair), you'll need to expose it to her family, your family, OM's W, etc. It's the one tool you have to bust up the A so it needs to be done in one big tsunami. And do not forecast it.
Read on this site, especially about Plan A and B. You should be working on plan A. Here's a summary of plan A:
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The Carrot and the Stick of Plan A
The carrot of Plan A
Meeting your wandering spouse's emotional needs.
Making "home" a warm and inviting place to be.
Placing emphasis on what has worked in the marriage.
Showing consistent self improvement in areas where previously lacking.
Stop lovebusting behaviors.
Communicating with a calm reassuring voice and relaxed body language, even in the center of a verbal storm created by the infidel.
Becoming the person any reasonable spouse would want to come home to.
Remaining open to the possibility of recovery.
Offering forgiveness and understanding.
The stick of Plan A
Exposing adultery where it matters most. Exposure that takes the form of a swift and sudden unexpected tsunami of truth.
Not appologizing for exposure or speaking the truth in a kind yet direct way.
Directly communicating the hurt and devastation that the affair has caused.
Not accepting blame for the infidel's choice to become adulterous.
Let the consequences of adultery and infidelity fall freely upon the heads of the adulterous.
Establishing boundaries that disallow the affair to effect children of the marriage, financal security of the marriage, and otherwise ruin innocent bystanders.
Standing up to infidelity as a beast that must be slayed for the good of the family.
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Here's a link to the actual plan by Dr Harley.
Plan A and Plan B Read read read and post with your questions. Sorry you have to be here, but you've found the right place to save your M.
Give us some more info like how long M? Children? etc