@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.
Quran even permits marrying christisans and jews,let alone ismaili.
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?