Silly (but valid) question...
...do you think the Marquis 'loved' (I use the term VERY loosely)Madeline or Abbe more. I just watched Casanova (the British version) and Don Juan De Marco (the Johnny Depp one) and I noticed that in each film there was a single 'conquest' who meant more to the protagonist than the others. In Casanova it was Henrietta, In Don Juan it was Dona Anna-and I was just wondering (though I know that the Marquis was hardly a great romantic like Jack or Donny) who the Marquis would choose as his.
I know he had a less turbulent relationship with Madeline who understood him and his craft-I feel that he had more of a connection with Abbe. Abbe showed him sympathy when no-one else would, and they had long discussions as to the nature of man with all the intimacy of a lover's quarell.
(Or maybe I'm making it all up, and I just like the idea of the Marquis and Abbe coupulating.) There was certainly more sexual tension there as demonstrated by the scene where the Marquis stripped for Abbe. (If de Sade was anything like me he would be greatly excited by the idea of deflowering a priest. Forbidden fruit and all that.)
Those are my principals. If you don't like them I have others.~Groucho Marx