That is a hard question for me to answer, as my exabf, when sober and somewhat working his recovery was always very remorseful, however, those were his words. After another half hearted attempt at recovery, he would go back to drugs & alcohol and thus, to me his actions told me he was not remorseful at all.
I believe that my exabf has no conscience, no ability to consider others feelings. For him, its all me, me, I, I.