Confusion is good as long as if he DOES follow through with D you don't end up feeling like a used prostitute that he tricked at all...
If he's truly remoreseful for his affair he will stop the divorce and end all contact with OW when you ask him to... Right now I am suspeicious that he may have just postponed the affair until everything is finalized...
If he's trying to trick you like that you need to know about it... I doubt they would be able to pull off not contacting each other until both D's are finalized...