I suggest you REALLY think about what forgiveness means. And if what you are feeling now is TRUE forgiveness.
This is not a dig at all. Just a very humble opinion from what I saw in myself.
You still want to be M to your W even after her A. In a lot of ways this looks like forgiveness. I know I looked at it this way.
I must have forgiven her if I still want to be M to her, right?
It goes a lot deeper than this.
Your reason for wanting R may not be forgiveness at all.
TRUE forgiveness may, IMO, most likely, take a lot longer.
Ask yourself if your forgiveness changes at all depending on her actions. What if she has not stopped her EA? What if it is a PA? Still forgive? Not just "still want to R," but forgive? Completely?
If it is TRUE forgiveness, why are you so eager to tell her?
Do you expect something from it? From her?
Again, remember. I post this from my own experience, so do not take this as any bashing of you. Only my realization that what seems one way at the beginning, may seem very different down the road.
BITS
Happiness is not something ready made. It comes from your own actions.