Alot has gone on in your situation. Its alot of reading. My question is right now at this point, where are you exactly at and whats your current thought.
As far as I know you have the following:
1. W still in A with OM 2. OMW is going to eventually drop a bomb on OM, possibly divorcing him and putting huge pressure on him 3. W is not intimate with you currently 4. W think she wants to leave the M, is actively pursueing leaving the M 5. Your fighting for whats best for the kids 6. Your fighting for the M 7. Job issue ( god dang, getting kicked while your down ) 8. Wife opened new bank account to move her portion of the funds over to it without telling you
Stay strong, its tough. Sometimes it feels like its a conspiracy or something to see all these commmon sitches and that it seems when the spouse is at the weakest the other issues the greatest damage.