Answer:
(Fatwa: 843/721=B/1429)
Loving a strange girl and keeping relationship with her is Islamically very sinful act. If both of you are not match (Kufu) then you should seek permission from guardian of the girl i.e. father, to get married out of Kufu. If he willingly allows the marriage, you can marry her. There is no need for Dua and amulet.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
