I feel for you and your loss of a love. I wish you the best of luck on your road to happiness again, and the new search for that certain new someone. I think you should take your time and enjoy you for you. The right person will show them self to you in due time.
As to your husband, have you told him how selfish and insensitive he was to your feelings and the situation. I hope you have told him, everyone should be on the same page, know that none of this should be a recurring thing. If she needs him and its not her time, is he going to do the same to her or, drop everything and run to her. That to me are things to discuss. Hope not being to rude in my comment. Again I wish you luck.