What the CVs don't realise that historical characters are not like Laila-Majnu,Heer-Ranjha etc.For these historical characters their love life was not everything.They need to realise that historical characters are not eternal lovers.
In Ashoka's case,his personality was shaped by his early life in PP,Bindusar's favouritism towards Sushim and the violent atmosphere which transformed him into a ruthless,cold blooded and violent man.
Ashok was an astute politician too.He was not impulsive as shown on-screen but extremely cunning and calculative.He had a plan to counter Sushim's every move.
Devi,Karuvaki and Asandhimitra entered his life in different phases and he loved them too.It was not like he had one,true eternal love.And if he did,we can only guess whom he loved the most.
His wives were a part of his life.He did not devote his life to any one of them.