I have always made important decisions based on facts and not possibilities.
I'm not sure I understand. Facts have to be in the past; they have already occurred.
Decisions are about the future. How can you make a decision without thinking about possibilities?
None of us here has any knowledge of your W. We have knowledge that you've shared in your posts about you and her, but you've written only a fraction of a fraction of what you know. We also have some knowledge of patterns in infidelity.
You DON'T know your W, except for what she tells you verbally and non-verbally.
You DO know yourself. You DO know what you think, feel, want, don't want. You know your strengths and weaknesses. You know how you respond in many situations; you know how you respond to many people.
No one, not even you, knows what the future will bring for you.
You've written some abut what you think WRT your W. What do you think is your best course of action?
Are you willing to take those steps?
If not, what do you need to do to start on the path you think best?
What support can we provide to help you do what you need to do?
fBH (me) - on d-day: 66, Married 43, together 45, same sex ap
DDay - 12/22/2010
Recover'd and R'ed
You don't have to like your boundaries. You just have to set and enforce them.