The scam will go on for as long as the guy is willing to continue sending money to help his "Russian princess" to get through her never-ending travel misadventure.
She will tell that she has found out everything she needs to do to receive a tourist (work, student) visa.
She will be all bubbly and excited about the opportunity.
Almost all scammers tell their victims that "this the the first time she uses the internet to get aquatinted with a man".
To speed up the process, the scammer "falls in love" with each of the potential victims literally within two to six weeks.
Sometimes at the same time many scammers would announce that their yearly vacation time (usually 2 weeks) is coming up.
However, the duration of the "set up" phase varies significantly.
The scammer replies positively to all of them and the process begins.
Since a lot of letters need to be answered, the scammer usually does not have the ability to answer all of them individually.
Some scammers offer to pay for visa themselves (as a "good faith" gesture).
After the "visa" is received, the scammer asks for money to buy - usually around 0-00.
And so " she" will reluctantly ask for financial help again.