Sign up for the Slatest to get the most insightful analysis, criticism, and advice out there, delivered to your inbox daily. By the time I was 19, I stopped dating and stuck to casual hookups to try to escape it all. My sister continues to bounce in and out of their home, and they continue to try to get her treatment. And I’m so scared and convinced it will be a rerun of every teenage relationship I ever had. —Dog DealDear Dog Deal,Hmm.