Consider the following.... Does it matter if she is? Will it bring you relief? Will it change whether you want to work on the M? Do you need the evidence for divorce procedures? Or do you think that discovering it will make her change her mind? Highly doubtful judging her high level of detachment. Ask yourself what finding out will do for you and then act accordingly. In my opinion and my opinion alone, a spouse needs to value and appreciate their M in order to stop their A. It sounds like your W may be in a MLC. If this is the case your true enemy is not an OM but her feeling trapped, bored, unfulfilled, and like she is running out of time. The OM is just a visible symptom. Confronting her whether the A is true or not will just drive her away. DB, GAL, and 180. It may feel terrible but it's all you can really do. Remember her actions are out Of your control. You can't pull her in but you sure can drive her away. Only worry about things you can affect and that is you. Please feel free to post often and you will notice that people will gladly attempt to help you with each new confusing situation as it arises.