Am I stuck?

We are 2 1/2 years from DDay #1 and 2 yrs from DDay #2. There hasn't been a DDay #3 because I have stopped looking/digging. The claim is "just" an emotional affair. The evidence leads me to think otherwise. Not once that I can think of has my wife told me any piece of information about the affair. I found it all out through text messages. Initially, I asked tons of questions, all with answers you'd hope to hear. DDay #2 began to unravel those some of those answers, creating more questions. Now the claim is, "there's nothing else to tell." This gets re-stated over and over again. I, for obvious reasons, do not believe her. Am I asking for more than is necessary? Am I stuck? Should I just move on and try to let it go? We are doing ok and have had other life trials that have brought us together, but the bottom-line is I do not trust her now anymore than I did a 2 yrs ago. I don't like that feeling. Any thoughts?