1cornithian6:14 "be ye not equally yoke wither unbelievers...." it's not BEING engaged to the person is important, but how Christ-like you will be thereafter.

At the resurrection people will neither marry nor be
given in marriage; they will be like the angels in
heaven (Matthew22:30).

To start with, it will be encouraging for you if you can talk to the girl and pray for her before them , let her understand that "the kingdom of God is within you" Luke17:21. Besides, God may tolerate her indifference to your word because she may not be the woman for you: "my thought are not your thought your thought are not my thought" Isaiah55:8, God always wants the best for his own, and he won't want any of his to be entangled by any Yoke. Marriage is a life communion MINISTRY which one ought to be diligent with every thing, the lady you see that is prudent today may turn out be someone else Tomorrow, "the heart is deceitful above all things, who can know it" Jeremiah 17:9, it is only God can know and explain it because he knows it. Allow God to lead you "The plans of the heart belong to man, but the answer
of the tongue is from the Lord. All the ways of a man
are pure in his own eyes, but the Lord weighs the
spirit. Commit your work to the Lord, and your plans
will be established. Proverbs 16:1-3

To start with, it will be encouraging for you if you can talk to the girl and pray for her before them , let her understand that "the kingdom of God is within you" Luke17:21. Besides, God may tolerate her indifference to your word because she may not be the woman for you: "my thought are not your thought your thought are not my thought" Isaiah55:8, God always wants the best for his own, and he won't want any of his to be entangled by any Yoke. Marriage is a life communion MINISTRY which one ought to be diligent with every thing, the lady you see that is prudent today may turn out be someone else Tomorrow, "the heart is deceitful above all things, who can know it" Jeremiah 17:9, it is only God can know and explain it because he knows it. Allow God to lead you "The plans of the heart belong to man, but the answer
of the tongue is from the Lord. All the ways of a man
are pure in his own eyes, but the Lord weighs the
spirit. Commit your work to the Lord, and your plans
will be established. Proverbs 16:1-3