I know I made the right call tonight, but I recurring doubts that maybe at this stage they are just friends.
K,
It is normal to have doubts because you can't believe that your spouse would actually do something like this to you. Unfortunately I am willing to bet my savings account they are more then just friends. At this time you have a short window to turn this around if you stay strong. If you act weak and don't set boundaries your chances for a quick turnaround diminish substantially. It's really hard but you need to stay strong.