Last time Nicole was here she arrived December 4,2016. and she departed RLC on February 25,2017. She was only here in the Apartments of B1 & B2 a total of 84 Days.
On a Schengen Visa you can travel around the Schengen Zone 90 Days out of a 180 Day Calendar Period. Once they return home their Visa Expires on a Single Entry Visa. If she had a Double Entry Visa then you can travel and go home and return on the same Visa over a 180 Day Calendar Period. Something doesn't add up. Why would she even consider returning to RLC if she only has 6 Days Remaining then she'll have to depart and go back home.