Why make the character gay in the first place if I don't use it on the show? I mean, if I want diversity, it would be nice to include the viewers, too.

Vega was the Lt. in 5x01 Search and Rescue and she was killed in Whispers later on. According to Mallozzi, they planned for her to ask Keller on a date - like there weren't enough people that had the hots for Keller *rolls eyes*