I sooo hope that he can stop her ascension. This whole story would go down if Lilith stays in the human realm always hanging/hovering over him. I think he also should make it clear that he doesn't like her romantically and he shouldn't feel bad when she cries. I always hate such delusional characters who can't take a hint.
Lilith can be so annoying, but she does it out of pure love. It's also kangwoo's fault for not clarifying it to her that he dislikes tentacles as you'll see in future chapters, though the reason for that is that he doesn't want Lilith to get hurt.
She's been there for him in difficult times back in hell, and she's one of his people no matter how terrified he is of her so he'd never hurt her.
Also she's his wife so.. he'd be a wife beater if he beats her

I swear he'll beat the sh*t out of her