The spoiler found in below website
http://www.latestgossipwu.com/gossip-10641-a
Naina tries to comfort karan after what all happened during holi, Naina takes utmost care of karan and pampers him.
Karan is moved seeing Naina efforts towards him and her loving nature which brings happiness in karan's life.
Karan who keeps himself away from his family and doesn't like to spend time with them is now changing towards them.
Karan is also turning friends with naina, naina has extended her friendship hand towards karan which seems karan have accepted.
Karan thus himself comes to have breakfast with family; everyone is surprised seeing change in karan attitude while sandhya is more irked with this.
And one more news found in ankita snapchat shared by one of Nairan fan that young karan is about to make an entry.
I feel all these spoilers say Karan has accepted Naina friendship and thus he is sharing his childhood activities and the problems of him. I think from that Naina can come to one conclusion about karan problem.