My friend is Moldovan National. She holds a Moldovan

My friend is Moldovan National. She holds a Moldovan passport but also holds a Romanian passport.
She came to England about a year ago and married a Georgian man in England about 9 months ago. She had known him for about a year and a half before.
The husband had a Visa and overstayed. He is currently waiting a decision on whether he will be deported or not.
The wife had her Romanian passport taken away from her as the home office do not believe that the marriage is real and think that is a fraudulent marriage.
On her part the marriage was 100% because of love at the time. She thought this when they got married but now she is not sure whether it was for love on his part.
The husband has become very possessive and commanding of the woman in question.
It is her understanding that if the home office/UKBA judge the marrriage to be fraudulent she will be deported back to Romania and be band from returning to England for a period of time.
Can they do this?
As I understand they can deporrt in extreme circumstances for example murder but didnt think they could deport an EU national for suspecting its a false marriage.
She is due to hear back from the Home office in mid August.
In the time since the home office has taken her passport and made the accusastions however, her marriage has broken down for the reasons stated earlier.
She is scared to leave the husband as she thinks it will effect her case to stay in England in a negative way and the Home office will immediately assume that it is a false marriage.
She is also scared to leave him as she pays for the home they live in and does not want to leave it to him.
She is also scared because she thinks that he will come after her and if not himself then his friends will come for her and maybe even hurt her.
She is stuck between a rock and a hard place.
She wants to know what she can do?