he does not mention any thing about marriage .. i'll try to translate it basicly for u ^^ :
" isnt there any turkish left" i think he means that why do u like anindita n not a turkish girl instead?
(of course we can understand it more clearly if we know the early parts of the conversation )
by telling "bulalim sana helal süt emmis :D:D
he does not mean clear girl ! its just an inside joke .. he means why dont u find some one who is turkish ? (i think he thinks that it would be hard to be with a foreigner)
by telling "ha tabi adi Aninditiaia (her neyse) olmaz da Aysegül falan olur :D:D " he does not mean find n ayşegül ^^ he is telling that " by that way (by finding a turkish instead) the name may be not anindita but ayşegül .. (he is somewhat joking) but wouldnt it be better that way, he says .
i hope it help u out ^^ dont hesitate to ask more if u get confused about anything , we'd be happy to answer :D