This is not the reason. Based on research, waifu that had relation with other guy is the same reason as husband that had relation with other girl. They can't blame partner coz they didn't check and confirm everything matches before getting married. Some men married because the waifu pretty when the men muka penumbuk. Some women married men that they don't really like but because the men have stable income, carreer, wealth yet ugly. After being together and getting bored, either 1 or both would find someone else.

For TS video, the guy can't accept facts yet wanted to punish waifu and her lover. Worse is he brought son along which is very wrong. He should ask waifu whether she still wanted to stay or divorce, what is her plan. Simple as that yet he dengki brought gang and son to beat waifu lover and shame the waifu rather than take it like a man. He's no difference from those PRC waifu or Viet waifu that went after mistress resorted to beating and shaming.