Aarti's faults are very minor compared to what she has gone through at Shendia Mahal. Although she had some support from her BILs and SILs, the elders have been a nightmare. Yaah on one hand has been quite supportive but on the other hand has been like a statue. Preoccupied with Arpita, the guy has hardly shown emotion. What he has failed to realize is that Aarti's position is harder than his because it's Aarti that has come into his house in a very unique circumstance of a newly wed bride bringing her son along. It's his responsibility to make her comfortable, which he hardly did until the kidnapping fiasco. Even if it was a friend coming to your house to stay, you make them comfortable especially if your joint family is large and contain some characters that belong to a circus. And here it was his newly wed bride.
I agree Yash was beginning to chill but to blast Aarti for trying something that his ancestors were trying to push her to do is totally crazy. I have zero sympathy for him and his obsession with his dead wife.
About lies, was he totally honest with Aarti before the wedding? Did he tell her that he had Arpita's shrine in his bedroom that he planned on sharing with Aarti and he was just looking for an Aaya for his spoilt brats and a punching bag for his parents and Boa?