From my own personal experience, I think you are wrong in thinking your W can never love you again.
When I was in the midst of my EA, I thought I was not in love with my H anymore. But I was not willing to give him up for the OM when the OM asked. I was not sure why, but I couldn't. Now 2 years later, after understanding my own actions and the characteristics of an A, I understand I was just confused. I was not in love with the OM. I was just fulfilling a need that was lacking from my relationship with H. Your W will need to realize this.
Now whenever I see my H, I have an overwhelming sense of newfound love for him. A love I have not felt for many years.
Is she aware that if she does reconcile with you, things will be different? If not, that may be why she is hesitant to do so.