The only thing we really know, is that they both seem visibly uncomfortable when addressing the subject publicly. They also stopped posting videos of themselves dancing together etc, so all these little things should be hints that they really want to keep their matters private.
If rumors are untrue, then I'm 100% sure they've repeatedly spoken out against it to their castmates behind the scenes, and in that case it's even worse for Danish to try to exploit something he knows is untrue for publicity. And If by some chance the rumors are true, then it's probably not comfortable to have it played out so publicly and exploited by both the producers and media. And in that case they likely would never strongly speak out against it, but it's also fair for them to expect courteousy from castmates. Exploitation from the media and the channel is expected, but it probably hits different when it seems like exploitation of personal matters by a castmate.
First thing I should have not responded to the initial post as it's not about SMP. May be my frustration after seeing the comments biased my judgement. So I will be careful not to bother about others. Sorry if any of my post hurt Arunitha fans . I didn't wanted to. And I definitely dont like negativity.