Responses
She did say when he was younger that she'll have to throw him out if he really was a tiger. So, I think that was when he decided to hide hus true identity. Also, he is killing because those foxes were after Sohwa.
They do hunt too, cause that's his supposed food-- he us a tiger after all. Even Sohwa wants to hunt she's just not good at it. That's why tigers are feared. So it's not surprising at all for him to believe that what Sohwa before-- that she will abandon him if she finds out.
Thats one hell of a manipulative bastard. Bro should have told her that u were a tiger instead of all that killing and shit, she is kind so would have let u go eazy pezy...welp...the drama continues...