It's not possible for a MLCer to leave signs that they're "coming back" because if they've left due to MLC, they most likely can't imagine WANTING to come back.
I did though. Between 3 and 4 years from the onset. We had two separations. After the first one he came back way too soon and then caught the backside of my MLC full force.
Several very dramatic things occured in my sitch that finally woke me up. One was just utter personal devastation. I broke after running for so long looking for something that I could never find. Eventually I prayed for God to show me myself as HE saw me and it all just snowballed from there. One of the final events that threw me out of the MLC tunnel was when I was the first on the scene of a motorcyle accident that happened on my street and while I was with him in the ditch with his blood on my hands, the man died. My little girl was about 8 or 9 at the time and she was with me. That shook the last bit of self-righteousness right out of me.
But my walk back is still in progress. It has seen many ups and downs. Has my relationship been restored? Yes it has. We still live apart but my husband and I are not divorced and we are increasingly close. Neither of us are dating anyone else although a while back - after 3 years of trying to reconcile to no avail - I did briefly throw in the towel and try to date someone - it did not work to say the least and I came back to my stand because it is where I belong. At least it's the only thing that FEELS right.... My husband and I have a few more issues to tackle though. Not small ones either.
If you are looking for a reason to believe, this world will never give you one. Pick up a Bible and talk to God about your family, be open to what He will show you, listen to what He says - ... and allow him to change you first.