To all walkaway wives (or their husbands who know the situation well enough to respond for their walkaway wives): what brought you back?

You can define "back" however you want: from separated to back to the marriage, from mentally and spiritually out the door (maybe not separated) to back to the marriage, from d-filed (separated or not) to back to the marriage, etc.

This is meant to be an open question, but I did have some sub-questions:

1. Was it a profound realization you had?
2. Was it something your husband did or stopped doing?
3. How long did it take before you came back?