Both are senior players. As far as I know Kohili is a good listener while on the field and seen seeking opinions from senior players. There can be occassional difference of opnions between the two, but such things cannot be considered as rift and it will not affect their morale when the play for the country.
Rifts were always there within team members. Ex: Dhoni and Sehwag, Kapil and Gavaskar, Siddhu and Azhar, Raina and Jaddu, Gavaskar and Bedi, Gavaskar and Vengsarkar, etc. All of them have become huge celebrities due to our public and have such inflated egos, these are bound to happen.
I would like to see that fellow as our captain who not only plays for the team but for his country and has guts to keep aside his personal grudge, ego and whatever. Now the question is does Kohli fit in that place?