Dienne -- Welcome to the boards but I'm sorry that circumstances warrant your being here. You have already received wise counsel from Raindeer! And it sounds as though you are doing wonderful work on your own as well.
I see a lot of hope that your H. told you that he could fall in love with you again. I know it's impossibly difficult but try not to focus on the OW and your H.'s confused feelings for her. (This advice is easy to give but hard to act on!!!). Also, wonderful news that you and H. have started doing special things at home again -- it's those types of things that will get you through the highs and lows.
Sage
Relax. Appreciate. Be calm. Laugh. Enjoy. Be secure. Be loving. Be loved. Don't personalize. Don't ASSume. Accept. Be grateful.