I chose Ken/Ann any day.
Mahalo (I think it was you who posted the comparison photo of Kawee and Khem, if not, I apologize. I am too lazy to hit the previous button), you can see drastically the difference between Khem and Kawee or should I say Tik and Ken LMAO How can most of the scene be so similar yet it has a completely different vibe. Kawee/Ken seems just so genuine and sincere. Narin and Wadee are so different as well. Ken really does make a difference in Ann's acting and vice versa.
To me, Narin had a understand of Kawee on why he felt so conflicted and mean. I don't think it would have worked out if Narin did not have a understanding of Kawee. Wadee on the other hand does not have a understanding of why Khem did what he did. She act as if she was the only innocent one. Narin did fuel Kawee's anger, she encouraged her sister to get close with Khun Kid.