is your friend in question from india.then she would not have a difficult time to get it out.
best is to be with her do not discuss any issue show her that you are not interested in her past.and you do not feel pity for her.
saying all that is an easy factor through words the actual use is a difficult portion would you have time to spend with her?there could be some point in time she would like to confide in someone but would that someone be around.
all this play an important fact.

always be there for her even if she is not talking to any of you guys do not bother.
please also make sure than the rest of the people around does not make gestures which she could feel that you guys are putting on a act to help her that will have a negative effect.
people at this stage are very watchful....
first you will have to get it over your head about her relation then things will move normally.