So time to step up and stop enabling her now. Look at the advice given before.

You have to stop talking. Start acting. Act like a man , father , husband here. If your paying for that phone , cut it off.
Limit her Internet.
Protect the family. Make sure your boundaries are very clear. And if needed. Enforce them.

For now you have had the talk. She is going to push you. And if you give in. Well now you are saying. I have no spin and I agree with what your doing. See how I enable it.

You need to kill these EA's Doing so will also help you gain some respect in yourself and in your wifes eyes.

Anger will be coming. But you should weigh the options. A wife yelling at you vs. a wife who has left and is having sex with another man physically instead of just on the Internet.

You have offered choices. Now uphold your choices.

Flowers always make people better, happier, and more helpful; they are sunshine, food and medicine for the soul.
unconditional love is awesome!