Sadness and navigation: listener question

I can't decide if the feelings I am feeling are sadness at the loss of my marriage or doubt as to whether I have made the right decision. We have let go of a lot of the past and come to a place of love & understanding. We have been in counselling for nearly a year & a half which has helped. We are separated but live together but we just can't seem to come back together & connect, it feels like we have come too far down the road & the gap is too wide between us now even though we have a mutual love and respect for each other. I guess I am just scared , I am going to regret the decision in years to come .....