I'll read and think about your other answers in a moment. This jumped out and needs to be made clear to you:

Originally Posted By: Fracesc
4. I'm scared to lose her. And feel very guilty that I pushed her into that place. I'm sorry. Part of the process is accepting your part of the responsability. I am doing that.


I'll break this apart for you:

Originally Posted By: Fracesc
I'm scared to lose her.

OK, here's the plain truth. YOU HAVE LOST HER. Your marriage and relationship as you knew it IS DEAD. You need to get this into your mind ASAP. This does NOT mean that you give up. What this means is that you are going to build a NEW relationship with her IF possible. There are no guarantees here.

Originally Posted By: Fracesc
And feel very guilty that I pushed her into that place.

You didn't push here into the arms of another man. She had the choice to raise the problems in your relationship and work with you to find solutions. She didn't. Instead she chose to live in fairyland and take on another lover and lie to you about it.

Originally Posted By: Fracesc
I'm sorry. Part of the process is accepting your part of the responsability. I am doing that.

Fine and yes, that is important to do. But don't accept everything she says at face value. You already know that she is a liar. You need to use your own discernment to distinguish the TRUE reasons. Many times the reasons given are not the truth but excuses to justify their bad behavior.