I'd like to extend to you and official welcome to divorcebusting.com. I'm sorry you are in a painful part of your relationship.
I love your actions related to doing things that are good for you...dental care, workinhg out, etc. Those are exactly the right things to do....take care of yourself because you are worth it...! It also helps your relationship....makes you more attractive. It also takes the edge off of any perceived neediness.
Have you read the Last Resort Technique in Divorce Remedy? If not, please search everything on this site related to that.
Hang in there...we are here to help you. You are not alone.