Ratan and Yash friends or enemy?

Frds pls tell ur view ?
Are they really friends ?
How many of u think they will be future enemies ?
And will hate each other .
yash is elder son still if anyone has observed ratan humiliated him and he spoke nothing against him still .
Even if they r friends...There are many chances of being future enemies .
yash warned ratan if he ever hurt Diya, then it will not be good
and he asked dhamki de rahe ho aap?