I know it's a drag, but the fact is that the odds are against you saving your marriage. Don't believe me? Then just check out how few posts that are in the "Keeping the changes going....yadda...yadda....after reconciling.....yadda...."
So, you have to protect yourself NOW. No one is saying to get D'd this instant, but to "stay still" is foolhardy at best and devastating at worst.
Fact: Your H is still "DEEP" into the A. Your H is trying to cake-eat. Your H is trying to stall you, yet offers no sign that he is coming back.
Don't "be still" yourself right into the poor house. I know you are smarter than that.