when he falls for naku...hmm...i dunno...i guess one task would be for him to realize that he loves her. but datta is a very sorted guy so i dont think it will take him much time to realize that. and once he realizes i feel he will tell it to someone who can help in taking the relationship forward...either aai or naku. he really wont dilly-dally. so somehow i dont feel there will be much role for baji to play. when he falls for naku...datta will seek her out..he wont wait for baji's help.