It basically means Asad and Zoya no matter what happens will complete each other with themselves. Asad himself said that he had found his name but her chale had not let him say it out. He was in pained to see Zoya in that state.
It was just to show
1. Zoya and Asad going to Paris maybe for their Honeymoon 😃 (will they go? Maybe they just switch scenes 😆 😆 Like Geet and Maan went to Shimla 😆)
2.Zoya knows Asad loves her so does Asad.
3. Asad and his love is all Zoya wanted, and she has his unconditional love and care now. She wants nothing in life anymore. (Perfect 4Lions ki Heroine)
By the way i quote a better explanation by my Sadaf dii, she says
'Asad was not able to find her name in Zoya's mehndi. this shows how selfless Asad has become in her love...now zoya's pain came first even before his Dignity moreover Himself'
The point of that scene was that, to show Zoya is complete with Asad, and so is Asad, and they know that they love each other, hence having them separated would be nothing but a SIN. 😳
I didnt wish to write a post on this but S is fretting, poor soul 😆 🤗! Also my weeeked Noddle, why do you guys have to take things in a wicked way? Sadists i tell you 😆 😆