Yeah, that was a major turning point of the serial. If one recalls, Jyoti had just had her divorce hearing in court, and Sudha had just confiscated all her Vashist possessions, including her mangal sutra. Once that happened, it was thought that the story had ended, and it was just a matter of time b4 Jyoti died.
Kabir's entry changed all that, as I chronicle in his appreciation thread. He was just what the doc ordered, and the first several episodes, where he talked Jyoti into lightening up, taking her to the movie, et al was great to watch. Of course, Jyoti, being the ultimate masochist, had to try and make him a saint in her own image, instead of accepting him for what he is.
Also, this philosophy of putting life above everything else, as Kabir is doing, is not the ultimate right, since the child in question doesn't have the right to ruin the lives of its parents. Jyoti should have had the courage to trump her 'mamata' and tell Pankaj to go stuff it, and that she doesn't care about Roshni any more. Instead, she let her feelings trump her duties as a wife - a horrible example. And Kabir did not do her any favors by not showing her the right path. In fact, Raghuveer, who's been the lone person in criticizing Kabir on his decision from the Sisodia side (and Padma from the Sharma end) are the ones who have it right.
Pankaj's story is the ultimate of how a totally undeserving villain gets all the rewards - even Brij got his just deserts.