Lol, he has always been messed up in the first place.
They had this chapter to develop his character and then the following chapter couldve made him caring for sooyoung . Instead the go the other route
Because that's literally his character. He has a huge obsession over Sooyung. He did took care of Sooyung in the next chapter but he saw an opportunity to take advantage of him and he took it. He has already done something similar before.
Shut ur face
Lmao.
The author had the chance to make him a sweet jellybean but decided to make him a rapist instead just to make Tae seem better