You know, I want to think that way too; however, Khun Tong Tome, Mae Ram, and especially his Mother, have been there for KK more than anyone in his entire life YET everything they say, do, or advise, he rejects, retaliates, and takes the enemy's side. I mean, KK has no respect for his Mother. KK keeps saying that he loves his Mother YET he does everything to displease his Mother. The only thing I've seen him do to supposedly show how much he cares for his Mother is marrying Pai but even then, he has no respect for anyone living in that house. He steps all over his Mother's judgment, orders, and insults her intelligence. I mean, his Mother has managed an empire with her own two hands, is an independent, smart, and classy woman who has survived in a world of corruption, competition, and most proudly, a world of business full of men. He should learn to trust her wit and choices.
KK is just plain selfish and chooses to believe Proong because he's so caught up in her web of lies and lust. KK is simply stupid, sorry.