My family is Muslim (I am not 'cause I don't really believe in religion although I believe in god) and trust me if she is a religious muslim she has a lot more reasons.
- Muslims are not allowd to date. You get married to whoever your parents pick (arranged marrige).
- Muslims only marry people from thier country and religion.
- For Muslims it is a sin to even think about a guy as more than a friend before marrige.
These rules are dumb, but a lot of people follow them.