tum bhuul kar bhi yaad nahin karte ho kabhi ham to tumhari yaad men sab kuchh bhula chuke
this couplet presents a stark contrast between the total indifference of the beloved and the absolute absorption of the lover. the poet complains that while the beloved cannot bring themselves to think of him even accidentally, he has sacrificed his awareness of the entire world just to remain immersed in thoughts of her. it highlights the pain of one-sided devotion.