►It is not permissible for a Muslim woman to marry a non-Muslim from any other religion, whether from among the Jews or Christians, or any other kaafir religion. It is not permissible for her to marry a Jew, a Christian, a Magian, a communist, an idol-worshipper, etc.
►The evidence for that is the verse in which Allaah says (interpretation of the meaning):
◙ “And give not (your daughters) in marriage to Al‑Mushrikoon till they believe (in Allaah Alone) and verily, a believing slave is better than a (free) Mushrik (idolater), even though he pleases you. Those (Al-Mushrikoon) invite you to the Fire, but Allaah invites (you) to Paradise and forgiveness by His Leave, and makes His Ayaat (proofs, evidences, verses, lessons, signs, revelations, etc.) clear to mankind that they may remember” [al-Baqarah 2:221]
►The second verse is no. 10 in Surat Al-Mumtahinah, where Allah, the Almighty, says:
◙ “O ye who believe! When there come to you believing women refugees, examine (and test) them: Allah knows best as to their Faith: if ye ascertain that they are Believers, then send them not back to the Unbelievers. They are not lawful (wives) for the Unbelievers, nor are the (Unbelievers) lawful (husbands) for them.”
►In the light of the foregoing verses and according to the practice of Muslims, it is absolutely Haram (forbidden) for a Muslim woman to get married to a non-Muslim man. This is one of the basics of Islam, and any woman is not supposed to violate the ruling whatever the case maybe.
►Now, we have some relevant cases: If a Muslim woman is married to a non-Muslim man believing that this is Halal (permissible) while being aware of the clear-cut proofs prohibiting this, then she has committed an act of disbelief by denying a ruling which has been established by Ijma’ (consensus of scholars).
►"If a Muslim woman gets married to a non-Muslim, she will be committing a huge sin and will even be regarded as an adulteress. If she considers it Halal for her to stay in this marriage, denies the prohibition established by the Shari`ah in explicit and unequivocal words, and finds nothing wrong Islamically in keeping up this marriage, then she would be considered a Kafir (disbeliever) in this case."
►there is no such a thing as what if "he promissed" to let u practice ur religion,the only way that u 2 can get married is that if he become a muslim,NOT just on paper but to believe in all islamic teaching !!