No more trip and fall
No more dream sequences
Marriage is not a joke. Abhimanyu thinks he has made things clear by telling Arohi that he loves her sister and this marriage is only for his mother but that doesn't reduce the value of this sacred relationship nor does it make it easy for him to shrug off his responsibilities towards Arohi.
Cheating is cheating whether it is physical, emotional or mental. He cannot think of Akshu, he cannot dream of Akshu and he can't pull her close on the pretext of helping clumsy Akshu.