Many times people have self-esteem issues if they have scars over their bodies. They feel they aren't good-looking enough, of course that's not true.
But I think it would be nice to see that zoya some how tells asad that she believes in life-long marriages and wouldn't like to marry him because if they do she will not divorce him and that she has scars... whereas she has already seen how he has an amazing body. And before all the other secrets are revealed, it would be nice to see how asad responds.
Hopefully he'd also tell her that marriage is a life-long thing for him, and that the scars don't matter... and that she's beautiful any how (mitwa moments). This would kind of give the feeling of compromise (where they both feel that the other one is compromising, but in their own hearts... they allow love to bloom, knowing there is no separation in store... of course what happens later is another thing). And as each secret is revealed (tanu, raziya, the father etc) their support for each other shall bring the love out. And eventually after their marriage they are able to express their love.
This is just something random that I thought would be relevant...