Rick, I think I recognise where you are because I was there once. Some plain advice about my situation may be appropriate. I'm not preaching because I don't know the whole story and cannot expect to so take on board any or none of this as you feel appropriate.
loss of attraction takes time
I was ignoring her emotional needs that I didn't understand for some time
This depletes the feeling of love slowly and relentlessly
ILYBINILWY is a critical sign that she's almost giving up but she is reaching out
talking about R right now will give rise to negative thoughts that could tip the R over the edge
The only safe way forward is to build love ignoring all else
Finding out what she's not been getting( probably for years ) is critical
It is likely to be something that seems insignificant( to you or me ) and is easy to provide
Demonstrating understanding of that will change her perception
Once love is restored all the issues that were swept under the carpet must be addressed
Hope this helps you avoid a load of mistakes I made. Good Luck.
Now divorced, boys grown up. Now in new failed relationship( never again, please )