Yash always believes Aarti and so time time too. In the begining he blamed her but now he knows that he himself is responsible for the night so he is more guilty. Use to ab kisi bhi halat mai prayashchitta karana hoga.
Usually women are shown so much sensitive but in PV it is a man who is so sensitive. He has made it very clear in the begining only that he wants to live in past with memories of his wife. Try n understand his situation. Its not easy to digest that somebody loves you from core of the heart when you know that u can't love that person. It also gives a sense of guilt for that wife to whom he doesn't love. Yash somewhere feels sorry for Aarti for not able to respond to her love n so want to get away from the situation, so breaking all the things every time Aarti says I Love U.
Gurmeet n Kritika, absolutely brilliant actors.