Responses
Because he thinks that dojin didn't keep the baby and the other guy made him believe that all the things that dojin said was a lie, for someone like him that clearly was "problems" with Alfas and stuff like that and on top of that given birth it's (for me at least) quite understandable why he doesn't want to stay
The problem is he didn't want to meet or live with Dojin. He still wants to go away. That's the thing!