I feel your pain, as I have been there. The only thing I can tell you is to give your H the space that he needs to think and actually see what he wants in his life. I know this sounds selfish on his part but WAS are selfish. All they think is about their feelings and their happiness.
In my sitch, H lived with OW off and on for about 5 or 6 months. Once he lived with her he realized what kind of lifestyle she lived which was totally different from his. Once he totally broke things off with her I believe that he "experimented" dating OW. H recently confessed that he is not happy with the "single lifestyle" anymore.
Just give your H the space that he needs right now. Let him contact you, and when he does contact you DO NOT mention anything about reconciling or other women he may or may not be seeing. What helped me is I would treat him as a friend or an acquaintance when I spoke to him on the phone.
I'll check back with you soon.
M:43 H:37 D14 (ours) D18 (mine) S22 (mine) S18 (his) S: 10/2004 Bomb: 2/15/05 In/out of home Living with OW #4 Talks of D for 2-1/2 years