"It's okay, you have me. You'll never be alone again. I am sorry I came a bit too late"
She doesn't want to die.
She wants to be saved.
And he saved her.
P/s : Open ending.
ㅡ "How about," she said. "A nice big cup of 'Let's stay in touch' my ass?" Everyone needs at least a one crazy friend, and it looks like Nayeon found hers.