
SPOILER
Indeed Yu will wake up after this. Since he already drink/eat three types of poison (the poison from that bitch from long time ago still didn't heal, the poison he ate before coming to see the husband and the poison he drank in front of the husband), these three poison kinda collided inside his body (?) and that's why he can still be alive. Later, he finally acted cold towards the husband and the husband finally regret with his decision and try to fix their relationship back. Although he's jealous, he still allowed Yu to meet a guy who claim to be someone from Yu's clan. That man is the cousin of Yu's mother. Yu glad that he still has relatives aside from his deceased mom
Im glad ijin got a nice friend ლ(´ڡ`ლ)