Your W isn't having an affair so I am not sure what you think there is to expose.
You and your W have not lived together for almost a year. She has chosen not to communicate with you and all her actions and desires (selling the house) have indicated she is moving towards a divorce. In her mind the two of you *are* divorced and you just have paperwork and the sale of a house to complete. I would imagine to her this dating site is a natural progression to the next phase of her life.
I'm not saying it is right or wrong but I would not consider this an affair.
I guess the only way to ask this is to be direct... you chose not to take ANY strong stances with your W for the entire duration of your separation. Why did it take a dating profile for you to change your tune?
I won't tell you this is not a big deal because clearly you are very, very hurt. But what has really changed? Your W still doesn't want to even talk or reconcile with you and that was how it was before you found out about this. Can you help me understand?
