So in Kanghan's eyes, Saifah is a criminal which made Sailom one too? It was just a few seconds ago in the scene when Kang said they will get through this together, and now this. I believe Saifah committed the crime to protect his brother in some way we don't know yet.
If a person is meant to die, how does not being together change things? Course of events may be different, but what's meant to happen will happen anyway. Death does not check if you are single or not.
Pho Jom: Khun Yaiii
Khun Yai: Jaaaaaaa
I don’t how many times I replayed that scene, it’s so endearing it drove me nuts.