Wait why did tae go with xinlu and not ilay? I don't think I understand

Because Xinlu has kidnapped Tae's brother. So Tae doesn't want to leave his brother alone with Xinlu

I'm kinda mad that he went with xinlu ngl or he could have at least told ilay that he was going to save his brother

Calci :
Bro that's llay we are talking about not some other guy he doesn't give a rat about his brother being kidnapped and him going for that he'll hold taeui either because he only wants him he wanted to catch taeui and taeui knows very well even if he tried to explain anything llay won't leave him and besides he has very less time since xinlu was about to leave where taeui couldn't even say anything he just made an unsure decision while thinking of his beloved brother either way you need to get that once llay catches taeui he won't let him go ever maybe even lock him up who knows he is a monster like everyone says