Of course there are the obvious facts like Ranvir convincing Sarika, Ranvir proving Kabir innocent in front of Aanchal, Kabir deciding to fake love for Aanchal in order to avenge Ranvir's insult, etc.
But in yesterday's (Monday's) episode, Ranvir was symbolically the reason Kabir accepted his love for Aanchal. Instead of telling himself that if it's his name he'll accept he loves her, he decided that Ranvir's name would indicate his love.
So basically, without Ranvir, AaBir's relationship is nonexistent. Is such a relationship healthy?
Of course, as mentioned many times in the forums already, it seems like Ranvir is deliberately 'pulling the strings' in AaBir's relationship. And just as he has been the reason for their relationship forming and remaining intact, he will also likely be the reason their relationship falls apart.