Sort of spoils it now that the results are already posted, but I was going to just say that since Hero had the A of hearts, if villain were to push with a flush draw he wouldn't even be drawing to the nut flush. I don't think it's likely villain would push WITHOUT the nut flush draw, if he were to push with the flush draw at all. But that's me. I don't think you need to look too far past the obvious at 25nl.