May be Jai needs time to convince himself that he did do the right thing, I mean after all he hated and abused Bani with passion and is in denial that Bani can forgive him so easily...and be happy with him...
So I think it is upto Bani to take matter in her own hands and help Jai realize that they both love each other and she is not regretful at all...Jai needs assurance from Bani that he did right thing... 😆