So Sara is interested in someone. When I try to think of who it could be, there is only one name that pops into my head:
Douglas.
The idea of Douglas and Sara together is somewhat terrifying. We haven't seen too much of Douglas himself, but he seems to be as cocky a guy as Doug. Meanwhile, Sara and Mia have compatibility issues, with Mia acting very different when she is away from Sara. We saw Doug use Mia a shield earlier. Maybe he sees Mia's dual behavior as a hinderance to his master.