What should a girl do who loved a non-Muslim young man and then discovered that he is homosexual, while she is praying for his guidance and wishes to marry him lawfully?

It is surprising for a conservative girl to be attached to an infidel youth of low morals. This is a clear defect and a negligence of the Sharia (definition)'s boundaries. She must repent, awaken from her delusions, adhere to the limits of Allah, and seek His help to remove this attachment. She should close the doors to temptation and occupy herself with beneficial matters and righteous deeds.