Arhaan doesnt smile. But Anita does. So, maybe you are right that Ajay and Anita do end up together. And the smile is just a polite one.

I agree with your belief that restoring trust is extremely difficult. So maybe even after all what happened they are still living together and cheating but also pretending that they love each other.

Or both Ajay and Anita have after all made peace with their circumstances and are living in an open relationship.

Or Arhaan and Anita do really end up together. However in this case too, let’s not forget that all fires eventually burn out, but what staya behind is the understanding and care and peace.

Possibilities are endless.