This character was played by someone in the old Star Wars rpg group I played in. He was driven to the edge of the dark side by...you guessed it...a woman. Between saving her and constantly having to put up with her ever shifting womanly emotions, he was pushed to use dark forces to survive.
I say this because the female character was a Twi'lek played by my good friend Travis (who also has art on DA), and I know he'll read this and flip. See, in his character's mind, everything was Lyder's fault (and I'm not saying he was right or wrong, because Eric, the player of this character, might check this out too) so naturally I have to put out the suggestion that it could be her fault, because I like it when he rants about the validity of his characters' POV's. He really gets into the personalities of his characters, which is great.