She is in distress... Must be forced into by some sergei ..
Most young Romanians are forced to work in sex industry by Romanian gangs. Just check all these budget hotels around Heathrow and Croydon.
They don't speak English, so they don't have choice but to follow and do what they were told. They are lead from the airport straight to the hotel. They are forced to stay for as long as needed then new ones come. They are forced to have sex without condom that's why you see in their profile bareback is available. They don't even know what's London looks like.
I feel sorry for them but because the justice system in this country is soft and it takes a lot to prove it, then nothing can be done for now.
What one can do is refrain from booking them then hopefully it will stop