I have quite a different interpretation, i just never said it. Didnt want to impose it then plus I couldnt find time to type and frankly was too lazy to to find the correct words to make myself understand.
Weeks back before ktk was aired or even started promoting or any teaser was out. There was a clip shared here, in which danish ne tere naam hindi movie pe react kiya and kuch shamsher se related bola. After that it was always in my head that both will die or even if one does dusra bhi kisi layak nai bachega, just like radhe went back to mental hospital after paying his respect to bhumi dead body.
I know the story aint same but dure antics of an innocent girl is quite same to bhumi the actor in tere naam. Dari si sehmi si, and she knew uske dad uski baat ek apne student se kar rahe hai shadi ki baat, uski bhi mangni type pakki thi the character played by ravi kissan. Frankly mujhe movie ab yaad nai hai but keeping such ending in my mind mujhe lyrics humesha sahi lage not the music not the voice though but i wont say that lyrics are all over the place. Meri aadat hai har cheez ko deep mein lejaane ki. Ek baari is thought proces se gana suno to lyrics are meaning ful.
I really dont think the song is completely on mehak. Mostly it is. Rulti maari maari is on mehak obviously.
But after diya jo zakham part, there comes the line teri manzil jhooti raah farebi, it is both mehak and shamsher talking about mohabbat that mohabbat hi bekar cheez hai because it has lot of pain, lot of hurdles, mohabbar hi farebi hai and koi manzil ni h mohabbat ki ya jhoothi manzil hai or etc.
At the end jab female singer has entered, i think the part sang by female is for mehak and part sung by rahR fateh ali is for shamsher after female voice is kicked in. Thats just my interpretation.
Dure saying again and again its a tragic lovestory.
Now coming back to tere naam the girl finally felt for salman character, radhe, because vo uski behen ka ghar bachata h uske jije ko dhamkata h and behen ko ek prostitute house se bhi bachata h, unknowingly that she is his love’s sister , he was not a bad guy dil se, so idk how redemption is going to happen but aisa kuch life changing harkat dikhayenge shamsher ki jisse mehak pighal jayegi because at the end of the day hai to lovestory hi.