Apostrophe-s is a possessive; fiancee`s and hentai's should be fiancees
and hentais.

i think he was trying to get the little apostrophe over the E like � �, you
know. it's Fiance�, but somtimes you dont know how to get it, or your font
dosn't provide the right character. kinda like Umlauts (� � � � �)