Thanks guys.
Although i am extremely troubled by this issue, there are lot of sleepless nights and sole searching going on.
There is no way she would rebel. This is not in our blood, family is always top priority for her (but she might leave with the feeling that she scarify something for family). She is one the best human being i know, her moral values and commitment with family are unshakable.
You are right, since things went up in the air now, it would have its own dynamics. Again i have heart to heart discussion with her today, she understand the situation, also share same fears and more.
I have been keeping a close watch on this, at firs it started as casual friendship, and later on a one way traffic on his part (for her nothing more then a good friend) and now we are facing this all in 7 years.
I am not sure if she really in loves him, it seem she believes that he is someone who loves her so much no one else ever would do, because of that faith in his love she is willing stand for him.