Sex File: How do we get back on track in bed after her affair?

"If you can't forgive, you can't forget, and the idea that you can get your sex life back on track when you haven't properly processed your feelings is naive."
You don't say what you mean by "trying hard to work through it", but if you still feel that you are only "theoretically" capable of forgiving your wife a year on, that doesn't sound like a promising foundation for sexual intimacy. Trust is essential for real connection. If you can't forgive, you can't forget, and the idea that you can get your sex life back on track when you haven't properly processed your feelings is naive.