Kristen Stewart allegedly 'could care less' about her ex-boyfriend Robert Pattinson's flourishing romance with British musician FKA Twigs. Could it be because things are scorching hot between the actress and her rumoured girlfriend Alicia Cargile? 

"They are getting very serious," a source told Radar about the couple, who have been spotted holding hands and kissing in recent months.

"Kristen and Alicia are not only living together, but they act like an old married couple."