meeting when they were younger works perfectly! she's got a big sisterly vibe to her, she could've saved his life instead of cutting him down when they had a one-on-one duel? and might have thought she could sway him to come with her, but failed. and now they're running into each other outside of the jedi/sith dichotomy, since she's a mercenary and sometimes bounty hunter. but she still believes in the light, even if she's not part of the order. he could also try to use that against her, too.