Well, to put it bluntly, I am you now. Well, sort of. You see, things weren't looking good for you. You're vitals were barely holding up, Leon wasn't doing a helpful job of healing you, despite my help and you were going to die. So I fused my body with yours in a last-ditch effort so save you, since you wouldn't have survived a trip back to the house. As a plus to this, you know have two minds to process information, your body can cast spells I know and you get a strength increase. A down.... I have to share a body with you.