After watching today's segment about Sona's promise to Dev to not meet her again and Dev's shattered life... I think it has reached the lowest level of their relationship and it can only rise from there. If they don't rise than it will be end of the story. What else will be there in the show to witness??
We are all upset and sad witnessing the breakup but think positive. We all knew from start that Dev-Sona will part ways due to Ishwari and that's what is happening and as the tag line of the show was "Kya paate hai kya khote hai...jab dilo ke faisle dimaag se hote hai???"
Dev made his decision to break up with his mind and he lost his own happiness in return. Sona made up her mind to move but she has already lost her heart to Dev. It's a struggle between the heart and mind.
The writers had cleverly inserted so many dialogues and situations which makes us believe that Devakshi can never be apart.
(1)The marriage vows they took in which Sona promises to support Dev in all his decisions and to protect each other from all badness.
(2) Dev's promise to do whatever it takes for them to be together and Sona's promising him to never leave him even if he leaves her.
(3) The breakdown of Dev after Neha's marriage and Sona consoling saying that if I can't support you in your bad times that what's the use of this relationship.
(4) Dev saying to Sona that I am a difficult person to deal with and his life is very complexed and Sona saying that I just want be be with you and if we are together we can win over the worst situations
(5) Sona saying to Dev that humans are not perfect but relationships are and theirs is 100% perfect.