What is the legitimate Islamic solution for making the decision to marry a girl who refuses to leave her country and family to spread Islam among them, and is our phone communication permissible despite her family's knowledge of it, knowing that I am awaiting her approval to propose to her?

Islam encourages Muslim women to marry a man of piety. However, there is no sin upon her if she rejects a righteous suitor because she does not wish to leave her country or for any other reason, as accepting a marriage proposal is not obligatory. Indeed, the wife of Thabit ibn Qays rejected marrying him due to his unattractiveness, despite his righteousness. Prioritizing staying in her country over marriage is a personal matter that varies according to circumstances. It is also important to note that a girl is a stranger to her suitor until the marriage contract is concluded, and it is not permissible to speak with her except out of necessity.