(You broke up with "Chiska" 8 months ago because you caught her cheating with another man, after those events you got hit by a car then you wake up at the hospital bed as you have diagnosed amnesia, "Chiska" takes advantage over your amnesia. As "Chiska" is still with that man that she cheated on you for a very long time)

In Chiska mind As long he forgets about the break up then we would be together again.