Yelan was assigned with killing you, of course, you didn't know that. All you knew was that she was your gf, so who could resist her?

"sweetie, the food stock at our house has run out, let's go to the supermarket"

You being her girlfriend, decided to go with her, but when she got the chance to kill you in the car, She couldn't, she just couldn't. You were too innocent and adorable for her to kill