Yes the way they talk to each other .. always gives out they shared a past relationship and are exes .. So Sai is not wrong in saying He’s sailing on both boats .. Also pakhi cannot hide her feelings or love for you .. and so it’s uncomfortable for Sai to move on and embrace Virat .. the logical way out .. Is Sai n virat shift to a different home .. visit the family on festivals ..like devi n pulkit ..
I feel pakhi is betrayed because she’s stuck in a mess .. what is her life .. she’s making tea and keeping Bk in good humour .. and the object of her affection is busy cavorting with somebody else .. when she had married samrat .. she had wanted to have virat at arms length..Do you remember how much she used to call virat in GC .. telling him to come back to Nagpur .. because she needs him .. she wanted him at her beck n call .. virat shrugging her off like yesterday’s news is a big insult to her .. and she won’t let him rest easy .. Hell hath no fury than a woman scorned
Pakhi's mess is her own making .....no doubt. It's just that Virat has indulged her too much emotionally ...and so she feels she has the right to question him at his indifference.