It all depends. If the divorce is because the ex was abusive, controlling, and hateful, and the husband left because things had become intolerable and all his efforts to find a less disruptive resolution had failed, then that husband probably has no love at all for the ex.
If the divorce came because the two simply drifted apart, then yeah, there are probably still the embers of feelings there.
I can answer that one! Yes!! The one good thing my ex did was to divorce me, which allowed me to find my perfect wife of 25 years, well nearly perfect.