But vinu is not attached to pl and he knows the relationship status of v-p because there is separate beds in there room so it is not possible that he didn't suspect something unusual.
They can easily show that pakhi is living in her room and virat's things shifted to that room only but he is sleeping in vinu's room that also they can explain easily and sairat room can be remain shut with her memories.
With sai returns it will just take few moments to understand there dynamics. Than how will they gonna show two families of virat when vinu will be able to understand the relationships.so they can't give the reason being vinu.