I am in a similar situation. My H came back, and we are considering reconciling. As for doubts, I went to a counselor last Monday who explained it all to me, and I would be happy to share her words of wisdom with you. It's on my thread, under Midlife Crisis-- Runaway H Calling Left Behind Spouse -- Hope? and then look at last page. Sorry I don't know how to do the link thing. But her advice was profound, I thought.
Quick recap: Three main doubts, Sincerity, Ability (to change), Durability (will change last). How to resolve doubts: Time and consistent behavior. The more that trust and hope was violated, the longer it will take for feelings to return. Six months to two years.
