@requiem_reborn: Well, just because she holds a different religious belief, does not mean you be unfair to her.
The thing about sect is like this: If you go ask her why she is ismaili, she will explain it logically why she is so, just like you can explain why you are "sunni". So, tolerate people.
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Quran even permits marrying christisans and jews,let alone ismaili.
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Well, if religious matters were so strict in your family you should have asked her first before going out with her... That's not fair, consider how she feels about you now?