Knowing how Krishna's family and how he felt about betrayal by a woman, it shows how far he will have come when he saves Prats' life. First he puts a gun to her head in the privacy of his room, then he puts it to his, and soon he will risk everything to save hers. This is how much he loves her, to the extent that he can't imagine living without her. And yes, Pratigya has tested that love by her confession, but he will never turn his back on her.