I think you ought to know what you're dealing with, MC, and that includes due diligence to find out if there is another person in your marriage. Why? B/c it matters. It will make a difference really for every next move you make. It will make a difference in terms of the the filter you will have to put her words through. It will make a difference as to the extent that you must protect yourself (physical, financial).
Can't think of too many times I've read on here about spouses who volunteered this kind of info - about having an A. Mostly it goes the other way - they totally deny - even before they are asked! Your wife cannot be your source of intel.
Look around. No one is bullet proof. If there is another person, you'll find it.
Greek
Me45 H46 T25 M22 S21 & 19 D13 Separated and filed 8/08 Moved home 11/08