Being sad isn't in itself an indicator of the success or failure of R, because immense sadness is part of being betrayed.
If you both want R and do the necessary work, success is likely - but that means both of you need to do the work, and IMO you need to get help if the going gets tough.
Do you want to R? Is your H doing his work - changing his behavior, in IC, being honest & transparent & remorseful, given you support, etc.? Are you processing your pain and letting I go?
An LD move is usually very stressful. How much of your doubt is due to that?
If you answer those questions for yourself, I think you'll get a better fix on whether or not it's over.