You know, now that I think about it, I'm surprised ITV has not experimented with the time travel/rebirth concept...
I read a Korean manhwa about a couple who had an arranged marriage; however, both of them were quite unhappy despite staying together for ~50ish years. The FL never felt loved and felt pressured by her in-laws, while the ML didn't know how to express his affection since he thought she loved him by default due to their arranged marriage...
They both had the chance to become younger (not travel back in time but go from 60 to 20), and that's when they finally realized how to express themselves... Shiva and Raavi just need a 2nd chance... a restart to hopefully make things right, otherwise they might continue down this pathway of destruction whether they can't communicate with each other properly, etc.