
I'm soooo confuse

The mc is scared that he will be left behind by his family but since he is adopted he does not dare to complain, since he is affraid they will hate him. He was always like this, but after his tought to be infertil mom became pregnant his mind collapsed ( started to sleepwalk),and he is even more affraid of being abandoned and so he wants to be even more perfect of a son so they will not leave him. So he over worked and worried himself about it to the point of collapsing from fatigue and being sleepdeprived. ╥﹏╥ hope I helped.
I get my hopes up... After they talking about pregnant... Well, who knows... Thid manhwa still ongoing ╮( ̄▽ ̄)╭