Assistant D.A. Serena Southerlyn was a character for 4 seasons on Law and Order played by Elisabeth Rohm during the years 2001 through 2005. The character became unexpectedly pro-defense during her final episodes that season, leading to her firing midway of the 2005 season. She famously asked D.A. Arthur Branch "Is it because I'm gay?", for which Branch replied something like "No, it was never about that."
Was her final line dramatic license only, or were there known situations during her tenure on the show where her sexual role was clearly defined? I am currently rewatching the episodes of that timeframe on Sundance, which is re-running the series "from the beginning". Knowing the reveal from that 2005 episode, I am especially concious of her interactions with women characters on the show. Her interactions so far are, at least through the 2001 season, somewhat abrasive. Anyone remember anything conclusive they can point out to watch for? I'm looking for answers inside the show; outside references need to point to clear examples within the episodes.