Advertisements I had not watched this series from the beginning, though I caught a few episodes here and there over the last two seasons. I finally realized that the episodes that I caught really made me laugh, so I've been catching up. I've watched S1 and I'm almost through S2, while watching S3 as they happen. So here's my question. For two episodes in S2, Leonard was dating Dr. Stephanie, played by Sara Rue. Then she was just...gone. No explanation, no break up. What happened to her? Did I miss something?