Based on the amount of damage she has done (or at least attempted to do - I had most finances/assets segregated) there are some extraordinary measures which would have to take place before we could ever reconcile.
1. New phone with no privacy 2. No privacy on computer 3. Move away somewhere else 4. No hanging out with opposite sex friends 5. Remorse/Counseling/Mental Health Evaluation
She wouldn't accept any of those I'm sure. And I can't really see myself budging on taking extreme measures to save the M. She already burned up her trust, so I don't think those requests are unreasonable.
If you get to that point, we can help you with these.