What does this mean?

As per all the new bts and precap, Raghav clearly knows that he is involved in Mandaar's death. But he would not be informing Pallavi as he would be scared of losing her (typical drama).

Shouldn't he be guilty or something? However, as per latest romatic pics of Raghav and Pallavi, he seem to be enjoying the moments.

Once Pallavi gets to know the truth, she most likely would misunderstand him then. ( this is also typical).