Sarah has a family emergency and Karl just takes off, doesn’t offer to help or even just be a supportive friend? Then at work Karl just goes back to coworker mode. Loser.
shareas a guy, there is never an accurate road map of how fast you should be going. if they both liked each other for a long, long time, there is no reason to hold back. Maybe he or she DIDN'T want JUST want a one night stand... it could have all been the start of something wonderful and long term.
However, we don't get to that stage because of her inability to manage her position with her brother. Her's was a tragic story line, and it ended up too much for Karl. I agree with him, she was wrong and needed to practice tough love along with the managing mental health care workers, but she still deserved her own life.