Gina Riversmith

Gina Riversmith is a country music artist; notably, the only one that Sven seems to like. 
==Biography==
After a show of hers that Sven attends, per Lydia's suggestion, she and Sven return to his apartment and have sex.
Gina was more than likely unaware of Sven's "it's complicated" status with Faye; she is, however, the reason the two broke up. Faye made it clear that Sven was to remain monogamous, or she would end their relationship.
Obviously, Faye no longer cares for Ms. Riversmith.