I actually think most bad blood towards Tori comes from when you are doing a Layla(+Elena) run then actually going for Tori.
When you are on Layla, Tori is a bitch with a huge chip on her shoulder, just being nasty and bitchy for no reason.
The actual Tori path is OK, she doesn't set out to antagonize you(often) and simply doesn't like wasting time, no talking, no relationship, no feelings(yet, it may come)... just fucking, very objective.
And pays no attention to you hanging out with other girls either...
Visually i think she would perhaps look better with a different hair, it's a little too short and too much blonde for her complexion.
The body is