Si, very sorry you're not having a smooth go of it with your W. I agree with Vanilla that it sounds like your W is trying desperately to control and manipulate you. It's not going her way so she's getting increasingly frustrated. All you can do is keep being a great you and leave her to her mess. It sounds like you are handling things quite well so kudos to you for that!
Regarding dating, most women who are interested in a serious R will not mess with someone that is separated. And they are right not to, there's a lot of baggage that goes with that as well as the very real possibility that the man is still carring a torch for his W and will run back to her if given a chance. So don't expect a lot of successful dating while you are still married.