Does absence make forgiveness easier?

Had a long discussion with a friend over the weekend about her ex husband. They just finalized their divorce after trying to work out their marriage after his affair with a co-worker. She's not bitter because she wants to move on in a positive light. She says that she forgives him and wishes him the best and they are still friends and are working together to get their kids through this. I asked about how she deals with the other woman, does he still see her? Are there others? Here's the difference in us: she doesn't worry about that because it is no longer her problem and it does not affect her anymore. I, on the other hand forgave my husbands affair, I'm not bitter and we are moving on in a positive light. But I worry. I wonder. Those things that I read and saw, still trying to let it go. Are there others? No but will there be? I don't know for sure and it is my problem and it affects my entire world. Maybe I should have titled this moving on or return to ignorance is bliss, but then again that's part of forgiving, and I'm having trouble with that part because I have to re-establish that trust that she does not have to deal with. Just some thoughts. Reaffirming, marriage is tough.