Ok. Who the heck is Tracy? I don't remember.

The girl who was raped and Boris saw it happening but didn't do anything.. she ended up dying in front of his car

Ok, thanks.
I was wondering if it was her. But it was confusing since it was him and not Boris who visited the grave. And his inner monologue was talking to her like they knew each other in the past.

Yes.. that's because it was only because of her that Boris saved him and they ended up falling in love