I, for one, am not convinced H is seeing or pursuing OW again. I could absolutely be wrong. But considering the financial pressure he has been under, it would take A LOT more to convince me he's back in an A.
I think you're EXACTLY right: for all intents and purposes, whether he is or isn't in an A should not change your planned course of action.
M: 40 H: 44 Married 14 years S11 & D6; D20 & D19 from previous M 2BDs/PAs, 8 years apart Piecing: April 2014