Thanks for the spoiler. That's a lot less interesting than what my imagination was coming up with. Like a long-lost mom or something.The sick woman is played by Namwan, who'll fall in love with Thong Ek after he cures her.
I did think PJ and Kim had chemistry in the short scenes they had in epi1. I don't see it with Mario and Kim yet but it's still early and they are still at the bickering stage.