Throughout the quest line her master, Lord whatshisname, kept telling her that we needed to work together. He also praised your character on how good of a job you are doing and that she could learn from us. I play a Chiss AI, so being a non-force user, Lord whatshisname would tell her to go and learn for me.
That is how I can see her being a non-force users companion.
Tho I killed her, Sith are hard to kill and she could have been found in the rubble and put in a kotio tank to heal, then sent by her Master to learn from me, learn control.
/signed