This may've been asked before, and it's something that should perhaps be fixed in a patch, but how come there are no Kajiit marriage partners in Skyrim?
Hmm, most Khajiit you meet in Skyrim are wandering merchants, and none of them are looking to settle down. It could be that all the female khajiit that will talk to you are also already married.
from what i have read Khajiit and argonians are enemies so a marrage would be extremly taboo
Not really. Yeah, there's a bit of rivalry in Leyawiin, but other than some offhanded comments and jokes played against each other in that one city, there is no indication the two races hate each other.